Thank you all for the comments you have made about this initial alpha version, I am very glad that you like it! To collaborate with Joorin also seems like a good idea.. The problem with music playback stopping etc. when switching tracks on a slower network connection (e.g., 3G) is a problem with the libopenspotify library, and it is being looked into (synchronization / threading issues within the lib). The current version works best on faster internet connections.