There is a new mobile device coming out that lets users listen to streaming media while not connected to a network. The device is called the Slacker Digital Player and Walt Mossberg @ WSJ.com recently did a review. There are also some recent pictures posted to Gizmodo.
I think the device would be ideal for distributing traditional podcast material using a 'station' format based on topics or music. An indie music channel seems like a natural. Maybe a technology talk & news channel would be another logical topic cluster.