Already possible to mine.
YES
Java is mildly interesting, but what is really cool is BFT.
YES
With the BFT consensus algorithm only one confirmation is needed and the transactions are confirmed permanently.
YES
There is no possibility of the transactions becoming unconfirmed from a fork and no need to wait for more confirmations.
YES
BFT does not fork like Bitcoin
YES
is secure against 51% attacks.
NO, 33%

Possibly the best response ever from a dev.
But 33% is a different attack that is not double spend, only pause mining, right? Do you have anything to counteract this?