Apple has released the iPhone 3.1 and iPod Touch 3.1 update to iPhone developers. This update is 208 MB, and updates the iPhone baseband. If you own an unlocked iPhone you should not update. This update permanently blocks any software unlock.
New features in iPhone 3.1:
- Copy and paste video in e-mail
- Tethering usage counter
- Camera API additions
[via iPhone 3.1 update]