This is awesome. Always wanted a Stylus for my iPad 2 but I've never gotten around to it. That said, definitely would use this on my iPad 2 and maybe try it out on my Galaxy Nexus just because I can
I plan to use it on my iPad 2 now and hopefully the IPad 3 in the near future.
Also will try it on my iPhone 4 but don't expect to use that combination much.
I would love to get a good stylus. I would use it on my iPad 2, Acer Tablet, Kindle Fire, and anything else that I can try it out on. I think mostly, it would get used most on the iPad 2 because of the drawing programs I have on it.