I am looking for a better app. K9 is alright and definately better than the building app but still lots to be desired.
Couple things I don't like about K9:
1) Read messages don't seem to stay marked as read.
2) No delete confirmation! (Very bad, I have accidentally hit the delete instead of Reply.
3) Doesn't consistantly poll the server for messages. When I force it to it redownloads the 25 latest emails.
Those are just a few of the important ones.
I use Touchdown for my Exchange. That is a great app!! If only it supported IMAP.