As reported earlier Apple has released the new iPhone 2.2 software update today via iTunes. Now the Apple iPhone software update page got updated with the new features and details of the new iPhone firmware. By the way the BlackBerry Storm launches today - coincident?

The new iPhone 2.2 Software update features Enhancements to Maps, Enhancements to Mail, Podcasts are now available for download in iTunes application, Decrease in call setup failures and dropped calls, Improved stability and performance of Safari, Improved sound quality of Visual Voicemail messages, Pressing Home button from any Home screen displays the first Home screen and Preference to turn on/off auto-correction in Keyboard Settings.
The most visual improvement in the iPhone 2.2 software is the Google Maps application. You now get Google Street View, Public transit and walking directions, Display address of dropped pins and Share location via email.

The iPhone 2.2 software update is a nice upgrade to the current iPhone software, definitely worth while getting it.
More details about the iPhone 2.2 software update are available on the Apple site.