I don't know how reliable they are, but VGChartz says the following are totals as of the 22nd (weeks out in brackets):
1. Pokemon Diamond/Pearl - 578,417
2. Super Paper Mario - 218,761
3. Wii Sports - 2,535,426 (aka number of Wiis sold)
4. Wii Play - 829,431
5. God of War 2 - 948,469
6. Diddy Kong Racing - 556,039
7. Tom Clancy: GRAW 2 - 477,478
8. MLB 2K7 (360) - 393,566
9. Wario Ware - 513,121
10. Twilight Princess (Wii) - 1,549,059
...
13. Bust-a-Move Bash - 19,849
16. Tiger Woods (Wii) - 180,848
18. Rayman - 441,730
19. Sonic - 218,416
23. Prince of Persia - 51,548
32. Cooking Mama - 60,634
46. Madden - 351,388
If accurate, those are really strong...