I was a little interested in the mix folder format that Mark Crispin came up with for the new version of Imap and (al)pine. Right now, I think c-client is the only implementation of it; he says that all other implementations should just use c-client rather than implementing it natively (though I'm guesssing mutt would want to implement it independently of c-client, though I imagine some code could be "borrowed" without any license violations)...
Is there any interest in supporting mix format in mutt? The idea seems interesting to me - it's kind of a hybrid of Maildir and mbox - there are multiple messages per file, but they're broken up into smaller chunks. This seems to me to address some of the problems with both mbox and Maildir (though it might open up some other can of worms). Any thoughts? w