[Dovecot] LMTP revisited

During the early Dovecot LDA brainstorming discussions, there was some talk about the possibility of including an LMTP interface, and I've noticed that there's an "is it needed?" question about LMTP in Dovecot's TODO file.

I'd like to put in a vote for LMTP, and I'm wondering if anyone else has a need for it. Specifically, I'd love an LMTP-enabled LDA that uses hard links when when delivering the same message to multiple recipients (I'm thinking Maildir files), as it would be a nice way to facilitate so-called Single Instance Storage.

Glenn