I use netvibes to listen to podcasts when I am home. It can stream a podcast so I don't have to download it, or subscribe to it like iTunes, Zune etc. It uses a flash-based player to do this.
Unfortunately, the kind of player control shortcuts to play/pause, stop, skip track, etc. don't work. The same problem exists on youtube, odeo etc..
Is it some limitation of flash that prevents keyboard shortcuts from working? If not, are there any websites containing a flash media player, where these shortcuts do work (preferably ones that can look at rss feeds and play podcasts)? Perhaps there is a java-based player that might work?