At Game (UK) it's the 2nd most pre-ordered Wii game after Wii Sports Resort.
9th overall on all consoles.
Pre-order charts
Wii
1-Wii Sports Resort with Wii MotionPlus
2-The Conduit: Special Edition
3-Virtua Tennis 2009 with Wii MotionPlus
4-Rock Band 2
5-Tiger Woods PGA Tour 10 with Wii MotionPlus
6-Harry Potter and the Half Blood Prince
7-Guitar Hero: Greatest Hits
8-Another Code: R
9-Wii Fit Plus
10- The Beatles: Rock Band