I asked this very question a few months ago
I'd love to play Meat's songs on Rock Band/Guitar Hero since I'll never be able to in real life. Who knows, now he's appeared on PS3 in the form of the Vidzone videos, maybe there'll be a track pack for Hang Cool Teddy Bear like Guns n Roses & Metallica did with their last albums?
Also Anything For Love is on Singstar on Playstation so maybe there is hope!