Plastic instrument rivalry news now, with Stephen Totilo of MTV Multiplayer confirming that the upcoming Xbox 360 version of Guitar Hero: World Tour will happily work with non-Guitar Hero peripherals – including those from Harmonix's first Rock Band game. The fate of Rock Band 2's instruments has yet to be decided – they haven't become available for testing just yet.

We're happy to see Activision tear down this wailing wall, even though we'll have to tweak our peripheral compatibility matrix for the umpteenth time. We're not quite sure how many an "ump" is, but we're thinking it's somewhere in the region of 119.

This article was originally published on Joystiq.