Finally some great news for iPhone and iPod touch users relying on Windows OS for jailbreaking iPhone 3G/ 3GS and iPod Touch 2G running iOS 4. RedSn0w 0.9.5 has been officially released by Dev Team and now you can easily jailbreak iOS 4 on your iPhone 3G/3GS and iPod Touch 2G using Windows OS.
Prior to this release, there was no way you could use Windows OS to jailbreak your iPhone 3G/3GS and iPod Touch 2G with iOS 4 . According to iphwn wiki, this non-Mac RedsnOw 0.9.5 release is still a beta and doesn’t provide “hacktivation” to iDevices.
Update: You can now Jailbreak iPhone 3G and iPod Touch 2G iOS 4 on Windows. Follow the step-by-step guides given here.
Update: There is a new version of Redsn0w 0.9.5 released by dev team for Windows and Mac. In this update, dev team has categorically emphasized the fact that this Redsn0w version is specifically for jailbreaking iOS 4 on iPhone 3G and iPod Touch 2G. Apart from this, there are some new interesting additions in this version, you can now choose to enable/disable multi-tasking, home wallpaper and an option to enable battery percentage.
It is also now confirmed that Redsn0w 0.9.5 Beta for Windows will only jailbreak iOS 4 on iPhone 3G and iPod Touch 2G.