While not perfect and a bit pricey, the Oregon Scientific iBall is a nice way to make your iPod tunes available at a party.
Pricing not available
Spectators won't believe their eyes when you make your phone -- or theirs -- defy the laws of physics.
Launchable, wireless projectile camera from Scotland provides stabilized images from ground and sky, wins U.K. contest.
iBall: Futuristic speaker for iPods
A new product called the XWave claims that it allows you to control your iPad, iPhone or iPod just by thinking hard. Can it possibly work?
iMouse fails to work correctly after driver upgrade
Utilities Updates: Apple Disk Copy; Apple MRJ; more