It's like ichat theater that used to be so helpful in FCP7. But it has a few more features. You can have several people on a live session at the same time.
By default you share one whole screen - and it's much faster than google hangouts, skype, streambox, or anything else that I'm aware of as far as not being laggy when streaming constant video. There are a couple ways to share just a "client monitor" as well.
I originally built this software for myself, but thought I'd share it here and see if anyone else can use it. Any remote editors who want to use this and maybe help out with some software testing - pls message me. 👍