Personally, i can't remember the last time i tuned into a radio station (both local and via iTunes). Honestly, this most likely won't be for me (downloaded podcasts in a playlist works for me). However i'm glad to see the idea being considered and support it (of course I don't have a podcast so that means jack).

I'm curious though - lots of "new" podcasts coming into the picture recently. I would want to see these stabilize and grow before relying on them to fill time on a station.

Along similar lines I wouldn't mind to see the WordPress community form an actual network (similar to 5by5.tv or www.muleradio.net). At least the former example has a continuous broadcast, like a radio station.