Awesome! I was thinking along these lines the other day, and picturing a “virtual conference” game where you could walk around and join ad-hoc circles of conversation. Maybe you’d see profile photo avatars for the people near you, and the further away ones would be generic avatars. I think it’d be a cool way to bring some of the serendipity of walking around a conference to online meetings. Maybe introduce a limit to the size of a circle too, so you don’t get 50 people crowded around the 1 famous person.