Apple has just released the 2.2.1 update for iPhones and iPod touches today, complete with various bug-fix promises for Safari, Mail, and the Camera app.
The update applies to all versions (iPhone and iPhone 3G) and most likely to both generations of the iPod touch. (Just plug in your device and hit Update to find out for sure.) It’s not a terribly exciting update, so don’t expect any cool new features. (Sorry to all you unreasonable folks wanting MMS and copy-and-paste.) If you’ve jailbroken your iPhone, you should hold tight on the upgrade until we see whether or not 2.2.1 is jailbreakable. ~ Source: Lifehacker.com