Unlike a lot of other people here, I actually thought that Nintendo had an excelent show this year. The two new Mario games look great and will definatly be must-buys when they come out. The new Metroid game looks cool, especially since it's being developed by two different companies. I was also glad to see a lot of good new DS games come out.
The Wii Motion Plus actually looks pretty impressive. The demo they showed off with it showed that it was capable of doing some amazing things. Wii Sports Resort even looked like a pretty fun game. I can't wait to see what Nintendo does with the peripheral in the future.
My only complaint about this year's show was the vitality sensor. I honestly can't see how it would work well with any games.
Overall, I was extremely satisfied with this years show.