Congratulations to the people at Lazy 8 on creating a fantastically fun, innovative, and great-looking puzzle game. I played the demo last night and immediately had to purchase the game... even though it was *well* past my bedtime.
The only criticism I would offer is that it seems to me that the "Least Moves" goals are significantly too easy in some of the puzzles. One of the early puzzles (I can't remember which offhand) had a "Gold" moves goal of 90 moves, and I completed it on the first try in 44 moves, without a significant amount of planning. I don't think that's an isolated case, either.
Conversely, the time requirements seem a little too hard. It seems odd to me that the moves requirement is fairly easy to complete, whereas the time requirement may require multiple playthroughs to memorize an efficient move set.
These are, of course, niggling complaints. It's a great game.