To update to the latest iOS 5.1 software on your iDevice (iPhone, iPad, or iPod Touch), go into Settings > General > Software Update. Below is the complete list of all the improvements of iOS 5.1
- Japanese language support for Siri (availability may be limited during initial rollout)
- Photos can now be deleted from Photo Stream
- Camera shortcut now always visible on Lock Screen for iPhone 4S, iPhone 4, iPhone 3GS and iPod touch (4th generation)
- Camera face detection now highlights all detected faces
- Redesigned Camera app for iPad
- Genius Mixes and Genius playlists for iTunes Match subscribers
- Audio for TV shows and movies on iPad optimized to sound louder and clearer
- Podcast controls for playback speed and a 30 second rewind for iPad
- Updated AT&T network indicator
- Addresses bugs affecting battery life
- Fixes an issue that occasionally caused audio to drop for outgoing calls
BUG: The day of the iOS 5.1 release, AT&T iPhone users experienced a bug where their “3G” icon in the top left corner got changed to “4G”. Of course this had no effect on the speeds; it was just a user-interface glitch. We can assume Apple will have a fix for this soon.







