TWONKY - my favorites and hassle free setup to enjoy your Droid/iPhone to stream music, Pictures, and video contents to your, Apple TV, AirPort Express, and no cable needed. Just download the Apps and enjoy your home network media wirelessly.
TuneSync for Android
if you want to play your iTune music on your droid, just down load apps called TuneSync
SIGN is gesture based speed-dial application that let you dial from your contact list.