I'm actually not that interested in the mashup idea this year. I'm more interested in a pure "The World We Want" kind of thing. Clearly o/net people are interested in that idea, and all would be welcome, it wouldn't be about excluding anyone, but the mashup idea where two or more networks maintain their identities doesn't really appeal to me. The World We Want feels like a unifying theme that could bring diverse people together, seeking ways to work together on "The World We Want."

In terms of icebreakers, I've never seen them used in an open space. They're generally not necessary because people are passionate about the theme and thus are excited to get right to work, and they get to know each other that way.