Beware, people: this version is seriously broken.
Previously I could use Spotify on my iPhone without racking up massive data bills - it wasn't unusual to spend the train home listening to stuff that wasn't cached.
Yesterday I had it running for a 90 minute drive home. The result: 1.2GB of data against my mobile plan.
Not only that, but on the iPhone version it would download and cache any song you had starred after playing it. My 'Starred' playlist? Only a few songs actually cached.
Be very careful of this version, the 'beta' tag is well-deserved.
On another note, what's with Spotify being *yet another* music player that doesn't even have a shuffle feature/button!?
Seriously, WTH is with this? Of every music player I've tried (about seven), only one has had a shuffle/random play button, and that's only in one obscure place.
Also, how about some kind of indicator in lists of the track currently playing, and remembering where we were scrolled to in lists?
So many other small annoyances with the Spotify WP8 player, eg you can's swipe across tracks rapidly - you can't skip to a new track until after the next track has loaded/started playing.