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At its annual iPod event today, Apple introduced version 3.1 of the iPhone OS for the iPhone and iPod touch. While there are a number of small tweaks and new features in this update, for the most part, the new firmware enables support for the new features that iTunes 9 introduced today, including Genius mixes and premade ringtones. One feature we were really looking for, support for augmented reality (AR) apps, will only be semi-supported in this new version, though at least some AR apps that were previously impossible to implement on the iPhone will now be feasible.

Steve Jobs returned to a standing ovation at Apple's annual iPod event today, where Apple introduced version 3.1 of the iPhone OS and the next version of iTunes. With iTunes 9, Apple introduces a Genius-like recommendation feature for apps and 30,000 premade ringtones for $1.29 in iTunes. Version 9 of iTunes has also seen a major redesign. The application and the iTunes store now look much cleaner. Apple also introduced 'iTunes LPs' that will bring liner notes and artwork to digital albums (the much rumored 'Cocktail' feature), as well as app management for the iPhone and iPod touch that is built in to iTunes.