The big advantage of IMAP is speed. I normally get 10 headers at a time. Since Spam Assassin kills nearly every piece of unwanted mail, 80% of the stuff I get on my phone concerns student services, start-ups or blog comments. I don't give out my phone's mailbox on any business cards or correspndence. This ensures my mail leads directly to and from events, posts, and curriculum items. Getting these items via IMAP is faster than via POP which means my phone now performs as fast as a Blackberry when handling email. Only now can I fully appreciate the push features that energise my Blackberry friends.
For now, I'm very happy with a three year old Nokia E90, my first Communicator device with nothing rotting in its email queue.
Sent mail2blog using Nokia E90 O2-Typepad service from an empty in-box.