Nope, they don't need to communicate. The masternode with the money just needs to sign a message with it. That node broadcasts it to the whole network. After than the secondary masternode is good to go.
So if I read this correctly what Evan is saying is that once the machine that doesn't hold the 1k drk get's approved by the one with the 1k drk it's a master node and the machine that holds the dark is no longer required allowing you to backup your wallet and put it away for safe keeping. Am I right?
But in that case I'm confused about how the collateral will work. Where will the .1 drk fee for bad actors come from? Or are we way past that point?
I could swear I read that differently last time I saw it? Was it updated/corrected by Evan? Weird how you can read something wrong....
Anyway, the .1 drk fee is still there for "bad players" but is only for those that are trying to DarkSend coins, not the masternodes.
Question I have is where will the payments for the masternodes be deposited? LOL. Just details though...