Beginning later today, Spotify Premium subscribers will be able to select their playlists and set them to be 'Available offline'.  Those playlists will then be synced to the computer so you can listen to your favorite tunes even if your internet connection goes down or if you're at summer house with no connection at all.

In addition to offline mode, Spotify also added Paypal to the list of available payment methods this week for users in the UK. There's still no formal word on the North American launch.