Here's some of our top software titles for NPD's June period, earliest weeks first:

Wii Sports (Wii): 91782 + 101605 + 92129 + 99490 + 87967 = 472973
Mario Party 8 (Wii): 143424 + 82962 + 61204 + 49320 + 30983 = 367893
Pokemon Diamond / Pearl (DS): 85232 + 78489 + 70801 + 63882 + 50818 = 349222
Forza Motorsport 2 (360): 84736 + 49734 + 36917 + 27792 + 19482 = 218661
Wii Play (Wii): 51292 + 45460 + 39802 + 41342 + 35527 = 213423

Naruto: Ultimate Ninja 2 (PS2): 0 + 71749 + 46422 + 31739 + 23619 = 173529
Resident Evil 4: Wii Edition (Wii): 0 + 0 + 86440 + 48514 + 25963 = 160917
Pokemon Battle Revolution (Wii): 0 + 0 + 0 + 135115 + 25436 = 160551
Guitar Hero II (360): 30165 + 28998 + 30990 + 31716 + 25669 = 147538
The Darkness (360): 0 + 0 + 0 + 110818 + 35568 = 146386

Tenchu Z (360): 0 + 76249 + 38201 + 19243 + 11609 = 145302
Nintendogs (DS): 26557 + 27383 + 26416 + 27242 + 29048 = 136646
Transformers the Game (PS2): 0 + 0 + 0 + 85451 + 48194 = 133645
DiRT (360): 0 + 0 + 69715 + 34563 + 20686 = 124964
Tomb Raider Anniversary (PS2): 48748* + 28859 + 18874 + 14958 + 12118 = 123557

Overlord (360): 0 + 0 + 0 + 79014 + 30461 = 109475
Shadowrun (360): 42230 + 24530 + 15891 + 10536 + 7721 = 100908
Super Paper Mario (Wii): 24556 + 21297 + 17850 + 19701 + 11056 = 94460
Big Brain Academy: Wii Degree (Wii): 0 + 34754 + 25301 + 15614 + 10872 = 86541
Call of Juarez (360): 45241* + 18639 + 10768 + 6547 + 4084 = 85279

The Legend of Zelda: Twilight Princess (Wii): 21240 + 18334 + 15330 + 16664 + 11953 = 83521
Spiderman: The Movie 3 (PS2): 27897 + 20219 + 12910 + 10110 + 8141 = 79277
Transformers the Game (360): 0 + 0 + 0 + 51345 + 27158 = 78503
The Darkness (PS3): 0 + 0 + 0 + 52632 + 17939 = 70571
Ninja Gaiden Sigma (PS3): 0 + 0 + 0 + 0 + 37860 = 37860

 

NPD Canada's top 10, which is more heavily Wii-slanted, has no actual numbers, has no Wii Sports, separates the Pokemon games, and has some kind of old Xbox value pack thing in there which I'm guessing was Canada-only:

Mario Party 8 (Wii)
Wii Play (Wii)
Pokemon Diamond (DS)
"Value Pack" (Xbox)
Forza Motorsport 2 (360)
Pokemon Pearl (DS)
Guitar Hero II (360)
Resident Evil 4: Wii Edition (Wii)
The Legend of Zelda: Twilight Princess (Wii)
Super Paper Mario (Wii)