watch macworld 07 keynote when jobs first introduced the iphone.
he jokes about using a stylus
Nooooo, if your finger works great, why some cheap stick that you can lose?
And then there's the harsh wintertime... where using something other than a bare finger can sure be nice.
A stylus does come in handy in drawing apps or when you don't feel like smudging up the screen. I bought a Pogo stylus a long while back for about $15. I definitely don't regret buying it. I don't use it that much, because it's impossible to type with (too slow), but I enjoy using it when I do.