Developer Harmonix has confirmed that the Wii release of Rock Band 2 will be compatible with the Wii guitars from Guitar Hero 3.

"HMX is committed to establishing Rock Band as a platform," reads a forum post. “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."

It is not known yet whether Guitar Hero World Tour, the upcoming entry in the popular rhythm franchise, will support the guitar controllers from its predecessor. Also, it is yet unknown if World Tour’s Wii guitars and drums will be compatible with Rock Band 2, though it is likely they will function well.

The Wii version of Rock Band 2 is due out this December. It will come with 84 on-disc tracks and will support downloadable content, with Harmonix having announced that all existing and future Rock Band DLC will be brought to the Wii.