Sorry για τα αγγλικα, αντιγραφω απο commenter του Engadget.
* Firmware updated to 3.1 7C106c
* Updated modem firmware to 5.10.01
* Updated AT&T profile to 4.5
* iPhone vibrates when moving icons
* Voice Control now works over Bluetooth, meaning wireless headphone now will work
* Improvements to OpenGL and Quartz, 15 new options to play with
* APIs to allow third party apps to access videos and edit them
* MMS buttons are back in the Messages app for AT&T customers but still don’t work
* Fraud Protection Toggle in Safari Settings
* Copy/Paste functions works in the address book and in the numeric keypad of the phone application
* Developers can now monitor/debug their apps over Wi-Fi
* The ability to save video attachments to your photo album
* The “Save” and “Save as Copy” options have been changed to “Trim Original” and “Save as New Clip”
* Overall faster
* Improved battery life, iPhone 3G & 3GS only
* Bug fixes