Recently, Sony confirmed on the PlayStation Blog that all the instrument controllers in Guitar Hero: World Tour, Rock Band 2 and Rock Revolution for PS3 will be compatible with each other. Posting in the Gamerscore Blog, Xbox Community Team member Chris Paladino confirmed that the Xbox 360 versions of the above games will also share a similar level of basic compatibility. Microsoft had announced during their E3 2008 press conference that Rock Band 2 and Guitar Hero: World Tour would feature compatible controllers on the 360.

"For the record, we also do that, so consider this an official announcement," said Paladino's post. "All the instruments from Rock Band 2, Guitar Hero: World Tour, and Rock Revolution will be cross-compatible."

Thanks to Joystiq for the tip.