My longing for this has been answered mightily by a Japanese freelancer who developed a small program named GDI++ that works on top of a Open Source product named FreeType (an advanced font rendering program across OSes). This small program works beautifully and adjusts the font rendering to Mac OS X like smooth and clarity all over the Windows. It is so beautiful how it can turn a boring looking windows to smooth and clear display. See the comparison shots below:

Without GDI++

With GDI++

Here are some instructions on how to get this working on your computer:

1. Download GDI++.
2. Extract this ZIP file in any directory, for example: C:\gdi
3. Double-click the file: gditray.exe
4. Now, your task bar you can note a “G”, like the image:
   
5. Double-click it, it should start glowing green:
   
6. Enjoy this beautiful font-smoothing.
7. You can adjust the font-smoothing level by right clicking this icon and choosing Use Preferences and selecting any of the three Japanese letters shown there.

Try it out…

After searching in internet for various times and provided with loads of steps that either failed to work or entirely different when you try to execute them, I’ve finally hacked my iPhone 2G to the latest 2.1 Firmware by using the basic methods that are supported and reproducible at any point of time. For the benefit of Info Scraps readers,  here is the full step by step guide to unlock your own iPhone 2G to 2.1 Firmware on Windows. Please NOTE that these steps may or may not work for iPhone 3G. Particularly the QuickPwn for Windows version mentioned here was not programmed to work with iPhone 3G according to the developers. So, please use these methods ONLY in iPhone 2G and of course on Windows only. Mac OS X users obviously have better and easier ways to hack the iPhone 2G or 3G which I will write in another post.

1. If you do not already have iTunes 8 or have an older version of iTunes in your PC, first step would be to go to Apple Official iTunes Website to download the latest version appropriate to your Operating System. (NOTE: Windows Vista x64 users like me should ONLY download the 64-bit version mentioned in this Page as using the other version will cause an Warning upon setup)
2. Install the latest version of iTunes into your PC and restart the Computer if asked, otherwise, start the iTunes.
3. Connect your iPhone 2G to the Desk Charger and plug the USB port to the PC. iTunes will automatically start up upon successful connection of iPhone 2G. If it does not, don’t panic, just start iTunes manually and it’ll detect the connected iPhone 2G.
4. Even though the steps mentioned here will not erase your data, I can’t guarantee you if something unwanted happens. So, it’s a better idea to backup everything in the iPhone by right clicking on the iPhone button in the left side bar of iTunes and choosing Backup option. Also, make sure you sync all your data to your PC using iTunes before you try updating the firmware.
5. Upon connection, the iTunes will ask you to update your iPhone to latest 2.1 firmware. If it does not ask you, don’t panic, just click on the Update button on the iPhone summary page in iTunes. (NOTE: look at the version number it says carefully. If by the time you’re reading this post, Apple released yet another update to the iPhone firmware, you might probably be upgrading to a later version than 2.1 firmware for which these steps won’t be effective. So, if the version number you see in the update dialog is bigger than 2.1 firmware, follow alternative steps I’ve mentioned at the bottom of this post to find the 2.1 firmware update to your iPhone 2G)
6. The update process will take some time, leave your iPhone 2G connected. The 2.1 firmware itself is a 230 MB sized file. iTunes will first download this file and then only update your iPhone 2G to this firmware. So, the waiting time will vary depending upon the speed of your internet connection.
7. After the update, your iPhone 2G will restart. Just unplug it from the Desktop Charger while it’s being restarted. This will prevent an nagging message from iTunes that your SIM Card is locked and your iPhone 2G put into restore mode (some rare cases only). If you’re not quick enough or forgot to unplug it while it’s restarting, nothing is lost. Just proceed down the steps. ONLY in case if your iPhone 2G is put into restore mode by your iTunes, you have to follow the alternative steps mentioned at the bottom of this post to get it back to normal mode.
8. Now, you’ll notice that only emergency calls are allowed in your iPhone. Nothing to worry about. This is the locking feature of iPhone 2G and iTunes. Whether you unplugged it from iTunes while restarting or not, it’ll still lock the iPhone 2G as you’re using the latest firmware but not using a genuine SIM Card.
9. Now, visit the iPhone-Dev blog to download the QuickPwn 2.1 for Windows software from there. If you’re NOT familiar with Torrents and was not able to download the official version or the mirror versions mentioned there, you can download my own version here which is the same as the official version (you can verify it by using the SHA1 signature mentioned in that post if you know how to verify file signatures).
10. Now, close your iTunes and plug your iPhone 2G to Desktop Charger and connect the USB Port to PC. If iTunes starts up again, just close it. You wouldn’t need it for unlocking.
11. Extract the QuickPwn21-1.zip file you’ve downloaded from Step 8 to your convenient location. You’ll find a README.txt file and QuickPwn.exe file. Double click on the QuickPwn.exe to execute it. (NOTE: If you’re using Windows XP and is not having .NET Framework 2.0 installed in your machine, you must first install it before using QuickPwn 2.1 on your PC. You can download the .NET Framework 2.0 from Microsoft Website for x86 if you’re using 32-bit Windows XP/Vista or x64 if you’re 64-bit Windows XP/Vista)
12. QuickPwn should detect your iPhone connected. If it’s not automatically detecting, just click on the blue right arrow button to make it detect your connected iPhone. Once detected, select the right phone (iPhone 2G) from the displayed options.
13. QuickPwn will now ask you to choose the firmware file which is installed in your iPhone 2G. If you followed my Step 4 above for updating your iPhone, you can find the latest firmware downloaded by iTunes at: %APPDATA%\Apple Computer\iTunes\iPhone Software Updates\iPhone1,1_2.1_5F136_Restore.ipsw
    (NOTE 1: APPDATA% means the Application Data folder of your Windows installation, to find it, just go to Start -> Run and type %APPDATA%. It will show you the correct folder where Application Data is available.)
    If you followed the alternative steps mentioned at the bottom of this post to update your iPhone 2G to 2.1 firmware, you’ll have to select the file you used to update.
14. If the file you selected matches with the firmware installed in the connected iPhone 2G, QuickPwn will show you a green check mark to indicate successful file selection. Click the blue right arrow button to continue.
15. Now, you’ll be given options to unlock your iPhone 2G. There will be four options as: Cydia, Installer, Unlock iPhone and Custom Boot Logo. You’ll have to select Cydia and Unlock iPhone (MUST). If you want an third party applications installer apart from the Apple AppStore which will be installed for you already in 2.1 firmware, you can select the Installer also. If you want the boot time Apple logo shown by iPhone to be something else which is cool, you can select the Custom Boot Logo (Just remember that choosing this option adds an extra step which will ask you to choose the custom logos for Boot and Restore modes which is NOT covered in this guide)
16. Now QuickPwn will open a new to show you that it’s ready to start the Pwning process. Click Go.
17. Now QuickPwn will do a series of steps and shows you actions to perform in the list of items in the Window which are highlighted in black when in progress.
18. These steps include, Switching off your iPhone after connecting to Desk Charger and USB Port to PC. Holding down the Power and Home in the manner being asked to put your iPhone in DFU mode (which is the Restore mode helping QuickPwn to install a custom built firmware in your iPhone)
19. Just do as it says exactly with the seconds count it shows. Please be careful about this process as it’s highly important. Also, make sure you’re connected to an unconnected power source so that to ensure your PC didn’t turned off while this process is being carried on which might cause a severe damage to your iPhone which may or may not be reversible.
20. At the last operation, you’ll still be holding the Home button. Don’t release this button until you see your iPhone saying Loading Ramdisk in it’s screen.
21. Just to clarify things for beginners, Power button is the small switch on top of the iPhone and the Home Button is the only round button available in the front side of your iPhone.
22. Wait patiently until the entire Jailbraking operations completes. It might take at least 10 to 15 minutes to complete the whole operation. It might be long also depending on your PC configurations.
23. Once all the 8 different processes were done, you’ll finally see a message in the QuickPwn window saying “You iPhone 2G seems to be jailbroken. You can now use the device.” or something like that. Wait to ensure your iPhone also finished it’s processes (sometimes QuickPwn finishes its processes quickly while iPhone is still loading and running multiple processes). Once everything is done at both end, you’ll see your iPhone restarting.
24. That’s it! You’ve now fully jailbroken (unlocked) iPhone 2G with latest 2.1 firmware at your hands. Enjoy. Please provide me comments here if you’re facing any problems or issues.

Alternative Steps (for different scenarios)

If your iTunes is latest than 8.0 and shows a different version than 2.1 firmware in the update dialog:

1. Download iPhone 2G 2.1 Firmware from Apple Website
2. If you’re facing problems or the above link is not working, you can Download My version here which is the same.
3. Connect your iPhone 2G to the Desk Charger and plug the USB Port to PC. If iTunes is not already started, start it manually and it should detect and show an iPhone button in the left side bar.
4. If iTunes asks for updating, just click Cancel and also choose the Don’t ask me again check box if it’s available so that iTunes will not nag you asking to update again and again.
5. Hold down the Shift key and choose the Restore button in the iPhone Summary page in iTunes.
6. It’ll open a File Open dialog where you should locate the firmware you’ve downloaded above.
7. Wait patiently until the full restoring is done. It’ll take some time depending on your PC configuration.
8. Once the restore is done, follow the Steps mentioned in the beginning of this post starting from Step 7

iPhone entered into DFU Mode/Restore mode and showing iTunes logo with a USB Cable display no matter whatever you tried to do with it.

1. First and the easy method, Just hold down the Power Button and Home Button together for 10 seconds until the screen goes completely blank. Release both buttons and make sure iPhone does not restart again into restore mode (Sometimes this happens if you’re either too quick or too late to release both Home and Power buttons. If it happens try again and again.)
2. After successful blank screen, you can press and hold Power Button for 2-3 seconds to power up your device and it’ll go to the Normal mode (It might still display iTunes logo but there will be a display of Carrier and a slider with Emergency Calls Only shown in different languages. In this case, it simply means that the SIM card is Locked but you’re in Normal mode)
3. If doing manually frustrated you and you were never successful, download ZiPhone 3.0 from ZiPhone Blog or from here in Info Scraps if the ZiPhone Blog download is not working.
4. Double click on the downloaded ZiPhoneWin-3.0.exe file. It will ask you where to extract the files, Extract it to Desktop (default location) or to C:\Ziphone or wherever is your convenience place.
5. Double click on the ZiPhoneGUI.exe in the extracted folder to start this. (NOTE: If you don’t have .NET Framework 2.0 installed in your PC, follow the instructions in Step 11 in main guide above)
6. Once started, click on the “Click to show advanced features” button in the Advanced Features area.
7. Click on the Normal Mode button in the Change phone mode area under Advanced Features area. This will take some time and puts your iPhone into Normal mode and accessible to QuickPwn.
8. This is also an easy way to switch between various modes like Restore, DFU and Normal.

If any other problems, let me know and I will try to solve them as much as possible by providing detailed instructions here.