There are so many Palm OS wireless email programs out there.  There is
thinair, MultiMail, etc.

Can you point me to any comparisons, so I can figure out which is
best.

The one major requirement that I do have, it that the program work
with IMAP, not just POP servers, and let's me see all my IMAP folders!
  I'm not sure of any that do this, ut I havn't checked.

I'm not going to try and answer which one works best (personally, I
use Eudora and it works great for me), but the link below has a list
of program.  Many of those programs do suppoer IMAP.

http://www.emailman.com/palm/

xemion-ga