This first release lays a good end-to-end foundation… easy set up, smooth cursor movement, and reliable click events. But the UI has key design flaws and missing features that keep it from being an everyday tool. It’s just enough to generate enthusiasm. Looking forward to updates and hope to see other developers innovate around this idea. - Amir Gharaat

I should add, more than any other iPhone app I've used, iTap highlights how unforgiving glass can be with moisture. I might be the minority but I experience frequent "fits and starts" when I attempt long, precise paths. This is a rare problem in most apps... iPhone SDK includes Apple's well-designed touch widgets which don't require high precision. But for this experiment I had good accuracy only when I wrapped a bit of Kleenex on my fingertip. - Amir Gharaat