The Mario says Super Mario Galaxy (Wii) will be amazing. Was gonna make a separate topic for this, but it serves better in here.

Mario Galaxy is going to be the most exciting, amazing fun ever. I played a little preview of it and I had goosebumps of joy and was giddy with laughter. The new Wii controller has so much versatility and makes possible all these things you could never imagine doing before.

It is like magic. This game takes it to a completely different level for Mario. I’m not allowed to reveal yet what I say in Galaxy but I can tell you there will be some surprises.
(Source: Kotaku and original source)

My 3D mario experience hasn't been too spiffy. I didn't have a 64 and the DS version I got for free didn't impress me, and neither did Sunshine. But I keep hearing from people who managed to play the demo of Galaxy that it is great. I couldn't really tell that from the little bits of video I've seen, but I guess 'playing is believing'.

He also mentions 'surprises' when talking about what he/Mario says in the game. Is he going to rap or something? Or perhaps there will be more 'story' to the game?

Mario is still a very powerful franchise. Despite the lukewarm critical reception, Sunshine is the 3rd top-selling game on the GC (and the top 2 feature Mario in one form or another). Mario Galaxy will move systems when it comes out, as there are a lot of not-quite-a-fanboy Nintendo fans who are waiting for more games.