Those of you disheartened because your older iPhone or iPod Touch won't support iOS 5 have an "unofficial" alternative.
Available for free, a piece of software dubbed Whited00r can install a custom edition of iOS 5.1 on the iPhone 2G and 3G as well as the iPod Touch 1G and 2G. The software works by tapping into the Restore feature directly through iTunes. And it automatically includes the latest release of Cydia to jailbreak your device. So unlike other hacks, Whited00r isn't too difficult to set up.