Hmm, I think it is for BlackJack professional players

and yes it is a very good addition to the game. It is fun to see how other players react on opponents bluff. I always love it when they take the fake and get lost with their strategy. Wait, there will be player vs player and player vs. Ai?
Version 3 of BitDice had blackjack and it was just player vs. AI (provably fair of course). I don't forsee player versus player or multiplayer features being included.