iOS 5.1, the latest version of Apple’s touch-based mobile operating system, is now available to download for iPad, iPhone and iPod touch users.
Launching alongside the Retina Display packing new iPad, iOS 5.1’s biggest new feature is tailored for Japanese audiences, bringing Siri support to the land of the rising sun.
To grab the update, either hook your iOS device up to iTunes through your computer, or use the Software Update feature within iOS to carry out an over-the-air, cable free update.
Apple list the full line up of changes as follows:
o Japanese language support for Siri (availability may be limited during initial rollout)
o Photos can now be deleted from Photo Stream
o Camera shortcut now always visible on Lock Screen for iPhone 4S, iPhone 4, iPhone 3GS and iPod touch (4th generation)
o Camera face detection now highlights all detected faces
o Redesigned Camera app for iPad
o Genius Mixes and Genius playlists for iTunes Match subscribers
o Audio for TV shows and movies on iPad optimized to sound louder and clearer
o Podcast controls for playback speed and a 30 second rewind for iPad
o Updated AT&T network indicator
o Addresses bugs affecting battery life
o Fixes an issue that occasionally caused audio to drop for outgoing calls