A couple of corrections regarding UpStage from one of the organizers of the event,

hi,
thanks very much for featuring UpStage on your blog : ) however, UpStage is the name of the software, not a group of artists. there are many different artists (some individual, some in groups) who are using UpStage as a platform for their work. also, the event in december isn’t a performance, but a walk-through – an open session for anyone who is interested to find out more about how UpStage works & can be used to create live collaborative performances via the web.

helen : )