It's official, Rockband's coming to Wii

[FishyJoe]

Other notes:

In fiscal 2009 they expect to ship 20+ Wii titles and 15 DS titles.

Ninja Reflex on Wii and DS March 31, 2008

Rock Band Wii Q1 2009 (April-June 2008)

http://media.corporate-ir.net/media_files/IROL/88/88189/Q308Script.pdf