Trolling slashdot and found this. Thought it was worth a mention, since people are going to be keeping an eye on this in the future.
PDF Technical Paper
From the source
Hopefully it wont end up like the cluster f*** that is vista right now.
Say they are going for dependability on this one from ground up. I wonder what that means in terms of security...
/edit: From the paper, it looks like this thing is going to be a resource hog. I have little understanding of SIPs so if zencoder or someone can chime in on this please do.