The Gamecube had comparatively few triple-A titles as well, keep in mind, and a substantially smaller library than the other systems. I think the Wii's got a somewhat lackluster start in that area but could very easily focus a little more on fixing the problem and still keep their huge lead. They could also totally fuck it up, sure, but I think a little more time might be all they need. If they're smart, anyway, and don't want to throw away the opportunity that's opened up for them.