Um, it's not, perhaps, that they're shifting development resources to their upcoming console, as well as their newly released handheld? No? How DARE THEY!
Seriously though, for analysts, you'd think they'd have more brains to come up with a logical explanation for this. The WiiU is a bit over 6 months away from release. They can't just pull games out of their ass for it. That shit takes TIME to develop.
If Nintendo went the other way and just kept developing for the Wii right up until the point that the WiiU is released, I could imagine these hypocrites jumping up and down and crying that "WiiU has no release titles".