The Pogo Sketch Transforms Macbook Trackpads Into Touch Tablets
Although I don’t think the Pogo Sketch will replace stand alone touch sensitive tablets, it most certainly provides a cost effective method that adds drawing by hand to the latest line of Macbooks. The Pogo Sketch is nothing more than a stylus built specifically for use with the Macbook Glass Trackpads. Careful, though, because if you push too hard you’ll ‘click’.
Available here for $15