The Light Marker is essentially a light pen for the iPad. You can have access to a free application which has some very cool activities on it. For example, it has a connect the dots game, where you can connect dots on the screen.
By the way, you don’t need to touch the screen to get it to work! This is really cool when you want to play the Hide ‘N Seek game where the Light Marker is used as a flashlight.
All in all, I would have to say that the Light Marker is a whole lot of fun, and I would say that it is worth the price of $29.99. If you want it, feel free to get it here.