http://www.engadget.com/2010/01/09/m...creen-quality/

Now the idea is that the straighter the line the better the accuracy of the screen. So I figured - well that's fairly straight forward. I will give it a shot on my N900. Now I have trouble drawing a straight line with pen and paper - but even so I was able to match easily the iPhone with finger and with stylus even better.

Give it a try and you will see why capacitive is sometimes the right choice.