It's all meh. One of the reasons that beebplayer was pulled was that iPlayer would work in 2.2. But if this won't let me listen to live BBC radio out and about it's still utterly useless to me.
Bring back beebplayer NOW!
Edit: just found this:
BBC - BBC Internet Blog: Live Radio over the Mobile Web
...which suggests that BBC radio can now be streamed live to any mobile phone (except iPhone etc, which is very odd). However I just tried and it didn't work over my WiFi connection, but I've come to get to know that my Desire has never been great with mobile data and might just need to turn it off and on again