I think it’s time for Nintendo to embrace the fact that people buy Nintendo hardware for Nintendo’s own software. It should stop holding back its own development to make room for third party-support that will never come, and instead blow everyone away with the sheer force of its own weight.
Nintendo should definitely put it's own weight behind the Wii U, but to disregard the appeal that third party software holds would be risky. Quite frankly, there are genres and games with content and themes that Nintendo wouldn't touch with a 10 foot grapple beam. There are also games that Nintendo are simply not capable of making. Nintendo cannot be all things to all people, and it is in the spaces that Nintendo don't operate that third party's have traditionally found success on Nintendo platforms, providing the types of games that Nintendo can't or won't publish.
My worry is this. If Nintendo is not receiving third party support at a point when their system's technical aspects are comprobable to their competitors (ports being made that much easier), then what hope do they have come next year when Orbis and Durango have lept over the Wii U? Based on history I would have to suggest that the Wii U is likely to be another Wii (at least in terms of third party support). It is this worry that has urged me not to buy a Wii U yet. I had fun with my wii, but was continually frustrated by the huge gaps in the release schedule.
When I was younger I could play a game for months and therefore the gaps did not bother me so much. I'm at a stage now, however, where I can afford more games, I'm open to playing a broader spectrum of games, and I want a system that can support that diet. If the Wii U continues on it's current trajectory it's likely to be another Wii, and honestly? As much as I love 10 or so games on that system, I'm not buying another Wii.
What I'm saying is, Nintendo could throw as much weight behind their system as possible, releasing more games per year than ever before, and the Wii U would still not have a software library that could objectively be considered inclusive. So Nintendo can either court third partys in the hope that they can turn the situation around, or they can give up and just let the Wii U become another Gamecube (a secondary system owned almost exclusively to play Nintendo games).
Personally I'd prefer they try the former.