To those who say these numbers can't be right don't underestimate the brilliance of Nintendo three pronged first half of 2008 strategy. They took GTA IV seriously as a threat, and responed by releasing their three biggest games of the year in a three month period spanning just before and after GTA IV's release. Smash Bros Brawl, Mario Kart Wii, and WiiFit are coming home for the Wii. They aren't stopping GTA IV from having massive numbers, but they are attracting many to the Wii who might have otherwise went for a PS3 or 360. I think you'll see the bigger system selling effect of GTA IV in May, but both systems will still be trailing the Wii by a wide margin due to Nintendo's big three scortched earth strategy.