Music Beta enabled you to upload your personal music collection (up to 20,000 songs) for free to the cloud so you could stream it anywhere, any time. Today, the beta service evolves into a broader platform: Google Music.
We automatically sync your entire music library—both purchases and uploads—across all your devices so you don't have to worry about cables, file transfers or running out of storage space. We’ll keep your playlists in tact, too, so your “Chill” playlist is always your “Chill” playlist, whether you’re on your laptop, tablet or phone. You can even select the specific artists, albums and playlists you want to listen to when you're offline.
Looks promising. Google Music is also US only at the moment.