iChalky puts a little chalk man directly into your iPhone. From there, it's up to you exactly how to abuse him. As you move your iPhone around, iChalky will start bouncing around on the screen in an attempt to keep his balance or just as an excuse to bust a move.
Let's be clear here, iChalky isn't a game nor is it a utility. It just is. iChalky is a virtually weighted creation that conforms to the laws of gravity set within the app. It doesn't rotate onto different sides of the screen or anything, so don't expect him to walk all the way around when you're playing with him. He will start dancing and moving around with the music and sound that it hears from the mic input.
You can use both fingers to pull iChalky around on the screen and stretch or squash him. Sometimes you can even get his limbs to stick to different areas. This will make him wiggle around trying to get free. Apparently he can't do that, poor iChalky. So after you stretch him out a few times and throw him around, there really isn't much left to do.
iChalky seems like a great concept app but that's where the fun stops. It really seems like it is moving completely on it's own and not responding to your movements like you would think it should. Just like Koi Pond, it's something to watch and barely interact with. Save the $.99 and just watch the review.