I volunteered on the RL side an commented the following earlier on hamlet's blogs about it:
"A lot of the public was still uncomfortable with virtual worlds and where surprised that people from around the globe would login and stand on a virtual see-saw with them. We had a lot if fun explaining, playing with them and in and introducing people to SL in this manner.
We have talked about how things could be improved, I think more modes of interactivity/communication would improve the experience. The 20 second video delay makes it disjointed experience."
The whole experience has me thinking about fun SL<->RL interfaces, you could do things with lights, wind, sounds, etc. But what I'm more curious about is what kind of mixed reality contraptions would you like to play with? Share your serious or wacky ideas, and it might end up being developed.