Sidekick (Score 1)

The Sidekick works wonderfully in this capacity. It's AIM integration is so good that I will frequently continue to use it while I sit at the computer. Your AIM useage isn't like SMS where each message costs you $$ either.

Oh, btw, it also does an admirable job at email. Again, sometimes it's easy enough to use the Sidekick even though you're sitting at the computer.

Oh, btw, it's a darn good web browser too. In fact, I'm using it right now to post this reply.

Oh, btw, it's also got all the usual PIM functions of a PDA.

Oh, btw, it's also an okay cell phone. Seriously, the fact that it's a phone is an afterthought to me. It's not that great as a phone.

They've just begun letting people play with a development kit too so I have high hopes of making it fill other needs too. It really rocks. I do have some complaints but this a damn fine tool.