On my iPad 3, when I select a Spotify link in facebook, via Safari, that was posted by a user listening to a Spotify song, the following happens:
1. facebook asks if I would like to open Spotify to play the track
2. I select Open Spotify
3. The iPad Spotify app launches
4. The app presents a dilog box that says "Could't Open Link" , "Spotify can't open this type of link on this device."
5. I select "OK" and the song track does not play.
Device: iPad 3 64gig WiFi only
Spotify iPad app version: 0.5.0.1651.gc221f863