Because the iPhone uses a special mulit-touch screen, normal PDA styli will not work on, but I know that certain metal-tipped pens will work - and even a thumb-tack.

I've got big fingers, but want to use my iPhone for SMS composition, and a stylus would help speed-up my typing.

I want to know if anyone has successfully used a PDA stylus or pen with their iPhone so that I do not have to pay $50 to buy a pen on eBay.

Thanks in advance!

this might sound silly but i have the same problem but i found that a child's rubber compass with no sharp ends worked very well.