Cool concept! I play a ton of tetris and I was wondering if you were thinking of making the pieces (elementinos?) more than a single block wide for a bit of diversity in what drops?
For example with a tetris T block. Maybe it could fire off beams from each of the points, and you could rotate it in order to 'aim' the beam?
What might help is having some kind of indicator in the game screen, to what the pieces do? I know they are described in the how to play section, but I found I couldn't remember that info when I was playing.