I think I understand Proof of Stake and Proof of Work from a conceptual point now. For themselves both are good ideas for sure, but how would a crypto currency like Peercoin (PPC) combine both of them? I mean, when active clients are waiting for the stake and they are contesting against others, there are also at the same time the normal miners using Proof of Work, calculating hashes. How is it then decided who will actuallly create and publish the next block? Some kind of prioritisation must be built into the currency. But then again, when some Proof of Work is done the block will have the threshold included for calculating the next hash. What is to be included by Proof of Stake clients?
I really hope to get how that connection works, that would be brilliant if someone could explain.