Wow - that version on your website was brilliant. I was hooked by the second puzzle; and would have happily paid for this app. You must have spent a lot of time making a web version, but I can only imagine how well that is going to pay off; I probably never would have downloaded this game otherwise (I don't download games, basically, ever). But with it, you sold me very quickly, and definitely left money on the table...

edit: I would also love a shake gesture to clear the cube.