http://gonintendo.com/?p=37535
Not much info, I don't know if EGM has a good reputation on rumours, but if they're right it's big news.
This could be another reason for them to aquire TakeTwo. All sports titles would go to EA's console with GTA.
Still, I think it would do mediocre, most gamers accept EA, at most. Plus it would seriously damage their income.