I have never heard of this game until today. I read an article on IGN about it.

http://ps3.ign.com/articles/100/1004529p2.html

What interested me is that it is a racing game where users generate much of the content. Since it is a PS3 exclusive it is being compared to LittleBigPlanet, but it seems like there are some big similarities to TrackMania. Granted, there seem to be major differences between the two as well in the way racing works (less stunts and such) but it was still the first thing to jump in my head.

Also, am I the only one annoyed that, although I personally love LittleBigPlanet, because Trackmania never really was largely noticed by people it gets ignored when a game with a similar concept does not get compared to it?