Latest beta , have a premium account , but no playback controls. Edit :
Started spotify on my windows laptop , Suddenly spotify wants to connect with my ip-address i entered upon registration for develop , and now there are playback controls
problem solved !

Request :
Would be nice to include a map with OpenStreetMaps instead of Google.
and with the possebility to add latitiude and longitude from text switches

for example :
maps.osm = { height: 280, width:12, latitude:%latitude%, longitude:%longitude% }

in source :
<iframe width=90% height=90 ...