At the end of the last generation it would have made sense to argue that Nintendo and Microsoft would benefit from a partnership, but at this point in time I don't see Nintendo getting much of a benefit from teaming up with Sony.
Nintendo is releasing the successor to the most popular system in the previous generation 12 (or more) months before their competition, at a time when current generation consoles are declining in sales. This in itself is a pretty good strategy for strong sales, and if Nintendo can release the Wii U at the "right" price and create the "right" software Nintendo will have little to fear in the upcoming generation.







