people do realise that companies out sources smaller studios to make games for them right? Nintendo probably did the same and sent out some of its staff to help them out and to teach tem how to develope games the nintendo way.
Like metroid prime 3 isn't exacly developed by nintendo it is done by Retro Studios (granted they are second party). Nintendo are just publishing it. Also nintendo recently bought Monolith. To me this was so unexcpeted i've never seen them buy a studio before this agressively. So who knows what other behind the scene buy outs nintnedo are doing.
If they have 45 wii titles I bet most of them started out life already on the gamecube (I know retro were working on like 5 projects before metroid and couple of them were 90% finished). So at best i reackon these games will be getting maybe wii controls and greaphic improvments and the story finshed off.
