Airfoil Speakers Touch, the iOS app from Rogue Amoeba that was yanked from the App Store last month under somewhat confusing circumstances, is back in business. The company announced today that AST has returned to sale, but it's now stripped of its marquee in-app purchase option. The ability to receive audio directly from other iOS devices or from iTunes (emulating an AirPlay hardware device), added in version 3, was removed to accommodate Apple's review requirements.
