I know you don't support O365 yet, but I'd love to use the briefs and don't want to setup a Gmail account just for this. You could support any other Oauth login mechanism too.
Can you include meetings organized by outsiders in the agenda? I love the agendas but I'm missing any meeting organized by someone other than me. I can't edit the meeting, it's not mine. And I don't want to have to copy it so I can.