I'd like to clarify that it seems like Bookworm (U) has been dumped, but dumps of the game are bringing up black screens only, and are possibly anti-piracy protected.
Not really. It's kind of a cross between Tetris Attack and Puyo Puyo. But it's pretty dull and the controls are just awful (you drag pieces with the stylus, but you have to drag them one space, then lift the stylus, then drag it another space, etc.)