Well Hyper, I'll try and help bring it back to topic....and yes, Shmokes, once again I jumped the gun too many times on my opnion of early Wii games. I now understand superior verses just average...my apologies.
Words are just failing me after nearly 45 minutes of non-stop play. Let's start here: my new favorite game to play on the Wii is Super Mario Galaxy. PERIOD, End of discussion - and I've got a feeling it will be for quite some time to come.
Let me try and start with the vibrant, beautiful coloring. My knowledge of video displays is highly limited, but my god, "videos" online of this game do NOT do it justice. I have an HD ready TV and got one of those HD cables last year to run from the Wii to the TV. The coloring is just unreal. Visual effects on this are just off the chart.
The camera movement is (well, at least to me) is so pinpoint that until I got used to it, I kept bending myself in half, trying to follow Mario's movement as he walked sideways and un and down the first planets. It gets better after a little while, but I'm still just in shock of being able to walk all the way around the little worlds...exploring every sqaure inch if I choose to. The use of the Wiimote and Nunchuck together, for whatever reason, make perfect logical sense to me....I cannot imagine trying to play this with a joypad controller.
Somewhere in an online review one thing criticized was the voice acting - that there's not enough of it. I will have to concur with that....looks like they could have done more than they did....HOWEVER, if doing so would have comprimised ANY of this game as it currently exists, I'm glad they left it out. This is Mario, after all.

I also wish it saved star bits when you go back to the observatory, but again it's such a moot point. Gives me a reason to "re-explore" the previous planet.
The soundtrack is every bit as stunning as the visuals. I found myself at one point just letting Mario stand still while I listened intently to the bright, vibrant score (I'm a musician, so scores really impress me). Just unreal. Don't believe me...turn the volume down and play it with no sound and find out just how much this soundtrack enhances the game play.
If it's not a 10, it's damn sure a 9 to 9.9. My wife is not a hardcore gamer, but I can't wait for her to try this one out. She loves games that are just plain fun, and this one slap out is the most fun you'll have with your Wii this year. Replay value seems to be really, really high for me too in that by the time I get to the next galaxy I may have forgotten half of what I've already seen. For all it's glory, not even Metroid Prime: Corruption can touch this one. Forget whatever nonsense I may have spewed about other games, this is THE one and was worth all the wait (and god knows we waited long enough). This one has my vote for Wii game of the year. WHAT A GEM.