Griptonite Games has released a free demo version of their Chimps Ahoy! [$4.99, App Store] game.
Chimps Ahoy! Lite [Free, App Store] provides a 7 level version of the game to provide you a taste of the gameplay before committing the $4.99 for the 100 level version.
The game is a multi-touch take on the classic breakout/arkanoid formula. The two chimps on either side of the screen are controlled independently with your thumbs, and your goal is to bounce a coconut between the two chimps to eliminate all the blocks. Enemies and powerups are also available.
While we have not done a full review of the game, this video from the developer provides an overview of the gameplay.