Using a crappy Samsung thing that looks like a toy phone. think it cost about £15. It came with £10 credit lol.
It probably has a better battery than my 3G. I want to return it, but I don't know when. The rubber is getting loose around the screen and the cable is broken at both ends. But it's the very poor battery life and the wifi problems that make my iPhone unfit for purpose. I wouldn't mind a 3GS or a new one, but if the iPod Touch gets a camera, I'm off.