Grooveshark is a great service to explore and listen to new music as well as upload tracks from your computer to listen to them anywhere. However their desktop client is slow and constantly uses CPU even when completely idle while their new website is pure HTML and fast. So he decided to develop very small stand-alone application that actually just displays Grooveshark website and adds some useful commands to Dock menu. Note that this menu is only activated for users with paid subscription. More features to come in next versions.