Cool stuff :) Played with it briefly. Need to find a way to see only unread mails in my priority inbox. gmail allows doing a "is:unread is:important" to get there (apart from the straight route of clicking on the priority-inbox link).

BTW, though vmail intro talks of Vim 7.3, I am not seeing any issue with getting vmail on my Vim 7.2. Guess it is recent enough.