I was looking at Penultimate, a sort of notebook/sketch pad app for the iPad. There are several of these kind of app (Adobe Ideas is another). I was wondering what to use as a stylus, as I don't have any other devices that have a stylus I could "borrow" for the iPad. Unless I can pick up cheap stylus off eBay or something? I don't know, I've never looked (okay, I'm being lazy here). However, if the iPad has an oleophobic coating, and is really designed to be touched with your fingers, would a hard stylus damage the coating and/or screen in any way? Have people had experience with styluses (styli?) on the iPhone or iPod touch?