Official Trailer:
Website: http://qube-game.com/
The game is currently out on Desura for 14.99. Very tempted to just buy it, but I think if I wait till the 6th for the Steam release to see if it will be on sale for the first week or so of release, maybe it won't, I don't know.
Anyways, game looks great. Gamespot thought it a tad boring due to the lack of a story, but players seem to like it.
Gamespot review: http://www.gamespot.com/q-u-b-e/reviews/qube-review-6348007
Desura page: http://www.desura.com/games/qube
--
Indie Gaming Board:
http://www.gamefaqs.com/boards/293-indie-gaming