http://www.ripten.com/2008/03/31/microsoft-owns-patent-for-in-game-custom-soundtracks/
Not sure if it's been posted yet but here it is anyways.
Not sure if this applies to In-game dashboards, but Sony will have to find a loop hole if they don't want to get sued.
In depth Patent description w pictures: http://www.google.com/patents?id=mx93AAAAEBAJ&dq=gaming+soundtrack
claim 1 (of 21) :
1. A method comprising:
receiving a request to launch a game in a gaming system;determining whether the game has a user-associated soundtrack;if the game has a user-associated soundtrack:launching the game; andplaying the user-associated soundtrack;if the game does not have a user-associated soundtrack:allowing a user of the gaming system to select a soundtrack to play while the game is executed; andplaying a default soundtrack if the user of the gaming system does not select a soundtrack.












