[Dovecot] "shared mailboxes"

Hello, After a long search I've almost settled on dovecot as a pop3 and imap server. I have just one problem..

Rather than have a list support@company.com, I'd like to have a shared mailbox.

The dovecot homepage explicitly states "Shared mailboxes aren't _yet_ supported."

The sentence implies that they're planned - any idea when?

Thanks