iOS and iTunes updates are now available. Between the new mobile operating system and media app, folks will see plenty of minor improvements such as a "4G" icon, a smarter Siri and a fine-tuned iTunes Match.Silly icons aside, iOS 5.1 also adds Japanese language support to Siri, finally allows users to delete individual images from Photo Stream and places a neat camera shortcut onto the lock-screen. It also improves face-detection, revamps the iPad camera app, and fixes bugs affecting battery life and call audio.