I use the amPen Capacitive Stylus with my N7. It works great with one of my fave games, CrossMe Color, which requires small squares to be filled in. I can enlarge the screen enough to use my fingertip easily enuf, but it works much better for me to use the stylus. I use it for other games, too, as well as searches, clicking on links, etc. The amPen has a 2-inch cord on it with a plastic plug at the end that is made to fit in the earphone jack. This way you can attach the amPen to the N7 when not in use and not lose it! I purchased the amPen from Amazon.
Cheers,
- martyh