Dark/Ducknote has promised PoS in a cryptonote. I don't see how this is really possible, considering that if you reveal to the network the amount of coins you're holding (and possibly how long you've been holding them) how you/your address remains anonymous, but they're implementation is supposed to be revealed in the next several months, so...we shall see.
Some will just refuse to reveal, others beein absolutely open on their wealthes. And all in between, so a variable slider for participation in the staking process would be a requirement. Or a simple on/off switch since one is allowed to own two wallets
edit: remember you can create/transfer wallets anonymously.Btw Duck was quacky, shouldn't have changed their name. Another argument for keeping things running on their path, once started.
Apologies guys - I fell asleep last night as I was about to post it (product of jet lag). I'm at the airport in Dubai, and as soon as I've managed to sit down and pull my laptop out I'll post it.
At least you are now a part of Igor Cassini's
jet lag class. So let us keep the price up, or fluffypony cannot afford the backflight ticked having to settle down in the desert. 17 is hardly enough for a tent.