Google Music Frame used to be an application that integrates Google Music in Ubuntu, providing sound menu support, notifications, multimedia keys and even last.fm scrobbling.
But the application has evolved and the latest development builds work with Grooveshark too. Because it now supports two music services (more cloud music services might be added in the future), Google Music Frame has been renamed to "Nuvola Player".
But there's something very cool about the Grooveshark support: because the website is embedded into the application, you don't need a Grooveshark paid subscription to use it (you don't even need to create an account if you don't want to)! Also, the Ubuntu Sound Menu / GNOME Shell Mediaplayer integration, multimedia keys or notifications already work for Grooveshark.
Grooveshark support should land in Nuvola PLayer 0.4, but if you want to try it in Ubuntu already, you can install the latest Nuvola development build from its (new) unstable PPA - available for Ubuntu Lucid, Maverick, Natty, Oneiric and Precise:
sudo add-apt-repository ppa:nuvola-player-builders/unstable sudo apt-get update sudo apt-get install nuvolaplayer
To install Nuvola / Google Music Frame in Fedora, see our previous post (note: not tested with the latest dev builds): How To Install Google Music Frame In Fedora.
Switching between Google Music / Grooveshark can be done by clicking the "Switch service" button on top:
If you encounter bugs, report them @ Launchpad.