> Bandwidth/Transport costs for live streaming, especially in group conference call scenarios (where N streams needs to be broadcasted to N-1 participants) beco

> Bandwidth/Transport costs for live streaming, especially in group conference call scenarios (where N streams needs to be broadcasted to N-1 participants) become prohibitively expensive after about 8 or so participants unless you can offload those bandwidth requirements to other places (e.g., like in a peer-to-peer architecture). I doubt they send N-1 full resolution streams to each participant. They probably send only the currently focused stream in full resolution, the unfocused streams in low res, and don't stream any of the non-visible participants. As you change focus between the streams you can sometimes see as it renders the low res stream briefly until the high res stream is received.