I will say that the physx demos from Nvidia's site seem to be limited to 1 core. If anybody would know how to make it work right on multi core it should be them? So basically they're admitting they cripple their own tech demo's.
He really sounds as he was payed to say that. His speech is strangely professionally set up and practiced, seems as though he memorized it, as the choice of words is extremely careful.