The Jambox wireless speaker from Jawbone seems like the perfect accessory for Bike Party. The video (a parody of “It Was a Good Day” promoting the “JamChain”) shows a bike mount, though as far as I know it’s not available from Jawbone. Maybe sometbody knows different?
Love the line, “Forgot to lock up my bike; nobody jacked it.”
$200 from Jawbone, and the JamChain comes free with it.