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"Clarifying its stance on rhythm game compatibility issues, Microsoft's Gamerscore Blog announced today that all the instruments for Rock Band 2, Guitar Hero: World Tour and Rock Revolution will be \"cross-compatible\" on Xbox 360.Sony announced yesterday that PlayStation 3 would feature full cross-compatibility among the three games as well. Guess that leaves only Nintendo to make it official.Update: The Instrument Compatibility Matrix has been updated[Thanks, Mike]"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2008/08/19/microsoft-xbox-360-instruments-from-rock-band-2-gh-world-tour/>