I use a RIM Blackberry (6720 I think) to get my emails and browse the web on the move. I think its interface is deeply lacking and the hardware is flakey to say the least.
But it has an amazing keyboard. I couldn't imagine typing anything this long using predictive text - or even handwriting recognition.
I still love my Treo 180 - but its consigned to a drawer until there's a Blackberry client for it. The same goes for any smartfone - unless my email comes to me I'm just not interested.
(Imported from my old blog)