[ciarannolan]

>Is there a significant amount of Facebook employees that are actually planning on leaving?

Of course not. The proof is in the puddin'. There is, and never has been, a mass exodus of technical talent from these companies. And during this period there has been near constant hand wringing and crocodile tears about the evil things these companies do.

[ascendantlogic]

Especially now with the US economy in the toilet and unemployment numbers at astronomical levels. No mass exodus is going to happen unless people can easily move into another job.