AppleInsider reader Will discovered strings that point to radio capabilities along with a corresponding ability to tag songs so that they can later be purchased from the iTunes store.
Corroborating this is a previous reference found to a Broadcom chip in iPhone OS 3.0 which supports FM. Its possible however that the new references are in regards to Internet radio.
Will also discovered references to Nike+ capabilities which has all but been confirmed in earlier news.
The iTunes code also points to other features such as: Voice Memos, Disk Use, Direct Movie Downloads, and VoiceOver.