The Guitar Hero III controller will be compatible with Rock Band 2.
Owners of Rock Band 1 & 2 on the Xbox 360 have long been able to choose their preferred guitar peripheral. A member of Harmonix's development team revealed in a post on the Rock Band Forums that Wii owners will finally have that same choice. Rock Band 2 for Wii will fully support the Guitar Hero III guitar.
"We’d like to encourage the interoperability of instruments between platforms so that players can experience music, and our games, with their instrument of choice", wrote the Harmonix developer.
Gaming site IGN also recently made public that the Wii version of Rock Band 2 would include online multiplayer and the ability to download additional songs including those currently available to PS3 and 360 owners.
Rock Band 2 for the Wii will be released before the end of the year.