Whats the idea of Nokia messaging on the N900? What is it meant to achieve compared to using IMAP or Exchange?
-reduce data use?
- save battery? I don't see how on the n900. With SIP, Skype, IM, etc it will always have a data connection anyway.
- extra settings? For some reason, Maemo lacks the ability to set start and end download hours for IMAP, to stop it beeping in the middle of the night.
- easier admin. This might matter if I had lots of mailboxes.
- IMAP idle? The nokia messaging FAQ says "Automatic delivery of email using the IMAP idle protocol". So its just using IMAP? Why bother with the middle man then?
And if the N900 can do idle for Nokia server, why not for IMAP in general?

But right now I'm not seeing much difference in accessing my google apps mailbox via NM or directly by IMAP, except for thing that IMAP should be able to do, but are missing on the n900.