I really don't think that is much of a big surprise. 360 has been out a full year longer with bigger installed base so it'll get most of the attention (for now).
Edit: Just noticed that there are no Wii games on that list.
I dont get the high PS2 titles numbers. 33 PS2 games in 2007 from Capcom? 51 in..what, 2006? I cant imagine. Are those a bunch of filler Japanese titles or what?