Hey folks, we're aware that some users have reported that the PS3 app will frequently freeze after playing 3/4 songs from any context--even on the latest firmare and after reinstalling the app/ logging in and out.
We can assure you we're on the case and inestigating. We'll let you know once this has been resolved. Thanks for your patience while we work on this for you.
We're setting this as "Fixed". Feel free to give us a shout if Spotify starts to misbehave again.