I didn't see there anywhere, but then I have never been succesful with the forum search engines before, so if it is already request, I apologize.
I think it would be a nice feature to have the option on how to arrange the folder listing. Right now it seems to be in alphabetical order. What I would like to see is a option to have your main folders (Drafts, Sent, Spam, Trash) always at the top, and then user created folder in alpabetical order beneath that.
I haven't taken a look at the code to see how feasible this is. If I have time, I will this weekend, hopefully I hear back from someone and won't have to looks
Anyways just my 2 cents, I really like what I see so far, and I have been using it exculisively for a few months. I can't wait to offer this as a stable alternative to squirrelmail.