Just thinking about POS and the possibility that your wallet will need to be unlocked for minting.
What about a simple security feature that lets you lock the nautilus app while your wallet is unlocked and earning NAUT?
I think I read something about creating a batch file for your PPC wallet which allows you to stake with a locked wallet.
A few other wallets have a feature that allows you to Unlock your wallet only for staking. So a PW will still be needed to send, but will stake.
Looks like this:
http://puu.sh/aix0n/00b5294408.pngThe current Naut wallet is up to date so I'd imagine the POS wallet will have that feature. All POS should.
