Read the article, it's a bit light on any deep stated analysis to really argue for or against the figures. I'd take issue with the idea that PS3 has an appealing 2010 software lineup while Wii and 360 don't though.
Next year really seems like everyone moving more into each other's territory imo... Gem and Natal are big plays for Wii's massive blue ocean, while Nintendo's big efforts (Galaxy 2, Zelda, Other M, MHtri, etc) seem like they're trying to entice the fickle/vocal herdcore back.