I am not a big fan of raffle games. I'd like to see blackjack, roulette or maybe poker & dice with 0% house edge. But I don't know how you will manage to do that.. Also how are you going to maintain the servers if you don't take an edge?
I think this one of there unique features from other online casinos that have this kinds of games.
My question do they need a big sponsors? I cannot understand because they already launch their beta site.