Cmw, creator of winpwn, has updated his website with information regarding WinPwn 3.0 which includes iPhone firmware 2.1 support.
It's been very busy for me recently at work and I haven't had much time to spend on WinPwn.But i'm hoping that planet/squpid and I can get the latest version out soon. I will keep you updated!
Avi: What do you mean it don't read your SIM? Or do you mean there are no signal bars on your iPhone? If so, follow these steps; Enable WIFI, open Cydia, All Packages, look for BootNeuter, Install, flash by following instructions on this page; http://wikee.iphwn.org/sgold_bootrom:bootneuter. Hope this helps. Good Luck :)
you can restore with these...
http://www.iphone-hacks.com/downloads/file/148 for 2g
http://www.iphone-hacks.com/downloads/file/149 for 3g
thanks Alias420
Good to hear that.
However, guys who did that Quickpwn2.1's way, they are at 2.1 with cydia and everything is working perfectly now, including the latest bitesms 2.3.
Howard: I did that myself. The process got rid of all 3rd Party packages, Cydia & Installer - App Store remained. Overall, Apple seems to have gone into a lethargic mode by releasing updates just for the heck of it while continuing to ignore basic shortcomings with the iPhone.
Your Windows reader may like to know, even without the availability of WinPwn 2.1, you can still upgrade your iPhone 2G/3G to Firmware 2.1 by doing the following, (1) restore to stock firmware 2.0.2 from iTunes, (2) pwn it using WinPwn 2.0.2, (3) then just UPDATE (not restore) to firmware 2.1 using iTunes 8. It does work because I tried it myself!