Has anybody tried pandora.com on the 770? You definately need to be single tasking at the time, as it taxes my parents old PII 350 128MB RAM machine.
I'm considering getting a 770, and if Pandora works on it, that would probably the last push needed for me to pick one up.
It's a pretty cool site, you enter a name of a song or an artist, and then tailors the music it streams to that. The main advantage over Ice or Stream casts is that you can skip songs.