So Justin.tv was started, it ran for a while. People realized that it wasn't going as well as they wanted and they weren't going to be able to build it as far as they want.

So they started a couple of internal projects of potential ways they could go. One was Socialcam the other was Twitch.tv. Both of these were part of Justin.tv.

After running for a bit it was decided that Socialcam would be better off as a separate company so Michael Sibel split Socialcam off into a separate company. Kyle was not part of that split.

Twitch.tv started taking off so Emmett decided to focus on that and eventually that took off and Justin.tv was shuttered in favor. Kyle stuck around at Twitch for a while working on Justin.tv and eventually left to found cruise.