Wii owners should be showing Capcom some major love. The only game they brought to either 360 or PS3 in all of 2007 is Lost Planet; there is nothing else announced. In the meantime, they brought a high-quality, budget-priced port of a great game to Wii, and will be adding to it three games which should fill major voids in the Wii catalog: an actually good golf game, a point-and-click adventure, and a rail shooter. These should have been totally obvious implementations of the Wiimote, but aside from some sub-par golf games, they've hardly even been attempted.
However, Capcom has nothing announced for Wii past 2007. They've announced Monster Hunter for PS3, DMC4 for PS3/360, and RE5 for PS3/360.
Hopefully there is a major announcement for Wii, and maybe one for 360, but it looks like they have PS3 covered. I wouldn't be surprised if 2 of the 3 announcements involved DS, though, either. If you haven't noticed, it's kinda popular.
"[Our former customers] are unable to find software which they WANT to play."
"The way to solve this problem lies in how to communicate what kind of games [they CAN play]."
Satoru Iwata, Nintendo President. Only slightly paraphrased.