Port to libspotify is in progress; first step is the get the existing functionality to work ok with the official library.. Then I will enable caching of playlist and other metadata, and possible enable the seek functionality (which is already implemented but disabled due to problems with openspotify). I do hope that a version will be available soon (maybe already next week). Offline functionality will be the first new function to be added to QSpot after switching to libspotify..