I just purchased and downloaded the AIM client for PalmOS. My immediate reactions:
1. At $19.95 from Handigo, it’s kind of pricey.
2. It doesn’t work with @MAC.COM addresses. Like many other clients, it considers the “@” sign to be an invalid character.
3. It doesn’t leave an agent running when you switch to another application on the palm, so you can’t do anything else while you are doing IM, and while you are doing something else, you can’t receive IMs.
With all that said, it’s pretty good. Works nicely on my Treo 600. Much faster than my 2-way pager and easier to use than 2-way SMS.
It’s also noticeably faster than using a web browser and doing messaging that way.
Perhaps I should write my own.