Finger-friendly UIs really don't work well for anyone with long fingernails (Guitar players, women, cats...) The area of fingerpad you can get to the screen when you have to angle the finger for the nail is huge and spludgy. Personally, I never use the stylus for the simple reason that I have a stylus on the end of my finger. I would not buy a device I couldn't interact with using a fingernail (or any available tool if my hands are wet).

Thought: capacative fans = nail-biters?