I'd like to mention some games that have been announced lately.
2 JRPGs: Fuurai no Shiren 3 and Oboro Muramasa Youtouden
Worms: A Space Oddity
We Love Golf
Monster Lab
Tales of Symphonia sequel
GranTurismo Nintendo does care about 3rd parties. For example the game that will have Mario and Sonic in it made by Sega or the fact that they are publishing RE: UC and Zack & Wiki in Europe for Capcom.
And to further prove this here is quote from an interview with Iwata:
Another thing we've learned at Nintendo is how to disseminate the information to third parties on how to build a successful software for the Wii. Last month, we had a developer's conference sponsored by Nintendo. One thing that happened: the Wii sports programmers put together information on how to better utilize the motion sensor and how they utilized it in Wii sports. We gave that information out at the developers' conference. We've heard some rough feedback, and what I have heard is that some people were surprised that Nintendo was willing to give that sort of information out to other people. I mean, up to that point, Nintendo had a reputation of being very, very closed mouthed and close-fisted with that sort of information: develop it on our own, keep it to ourselves, and not being very friendly to outside developers.
Now I have a development background myself, so I really understood. I thought to myself "Hey, people want to know how we're doing this." I convinced a lot of people at Nintendo to allow us to give out all this information. Now, of course, there's the possibility of being imitated, having ideas taken from us before we're able to use them ourselves. But at the same time, if the industry doesn't grow, then we can't grow and we don't feel that the industry--we have to have the industry to survive so we may survive as well.
http://blog.newsweek.com/blogs/levelup/archive/2007/09/05/nintendo-president-satoru-iwata-takes-victory-lap.aspx