I would just like to congratulate Spotify on creating the new activity feed for mobile devices (specifically iphone 5 for me). I really hated how I always had to use my desktop to share songs/ playlists with my followers and also post comments. Now I can do it on the go wherever I am. The other great feature is the like and replay option which gives you the ability to see who has listened to and likes your posts.
Well done team Spotify!!!