Orbox without all the graphics... maybe. Still, I really enjoyed orbox, and I really enjoyed this- regardless which came out first. For me, the crux of the game must be the puzzles, the rest is just icing, and I actually thought this was harder than Orbox, which = more fun to me.
I don't really see anything to critique, except maybe to add couple music selections (choices are annoying or silence).
I especially enjoyed the slight frustration of seeing a 5 move victory that doesn't use any of the cool blocks after 10 tries of running all over the board :) I think that is why I enjoyed it more than Orbox -the puzzles didn't necessarily depend on all the elements presented to you.
Jeriomario is right, a level editor would be great, but it would benefit from some sort of checking mechanism to make sure completion is possible... hmmm... Then you could actually have a "random creation" process you could use for testing and implementing future puzzle games, and THAT would be awesome.
Great game, good job... make more, and all that.