BBC features an article by Dave Winer on technologies he would like to see in existence one day. Among them:
I love podcasting, both listening to podcasts and creating them. But today’s podcast players are too awkward, they weren’t designed to subscribe to shows, instead they were designed to listen to collections of music (which is great too).
In order to really work for podcasting, I think a new kind of player needs to have built-in wi-fi, and when you come within range of a signal, a light comes on and you can press a button to have it automatically connect to the internet and download the latest episodes of shows you’re subscribed to.
It would work much the way a Blackberry gets e-mail, without you having to do anything.