there are stylus for capacitive now from HTC and a couple others and there is even the sausage stylus
originally available in Korea
http://www.engadget.com/2010/02/11/s...ld-weather-me/
and now in the US
http://www.engadget.com/2010/03/08/s...ale-in-the-us/
But capacitive stykus is not nearly as accurate as resistive nor Wacom. Its good for pushing/clicking on icons etc when you have gloves on but thats about it. Wacom has a combination called "pen and touch" which combines their stylus input tech and capacitive. That isn't used on an ebook reader yet.