Today's Free App of the Day is Edge
Game is well reviewed (with only 16 reviews so far, 11 of them are four stars and above.)
TraceyC/Fl of Kindleboards says: I bought it gladly at full price when I could - the developer was in a battle over the Edge name. It is an interesting read if you care to dig into it, but do get the game!!!
Mobigame's multi-awarded and critically acclaimed game is back! Develop your telekinetic strength by pushing a Cube within a geometric universe. Platforms, enigmas and reflexes combine to make EDGE a rich and very comprehensive game.
Some of the reviews mention problems with the controls.