Hey John, thanks for the idea. As far as notifications go, the forums allow each user to subscribe for notifications under specific boards, as well as specific topics, to receive emails when a post or reply is made in the respective board/topic.
I've personally subscribed for notifications in the ban appeals and report cheater/demo submission boards, as well as some other non-public boards.
I don't foresee integrating Tapatalk and our forums. What I do think would be useful is something that could be utilized in the gameserver for regulars to ping admins who might be available but out of the game, something I'll put on my todo list.