* Brilliant
* Lag and disconnects could be a problem. Suppose Alice, Bob, and Carol are playing a game and Bob suddenly decides to disconnect because he would rather pick lint out of his belly button. How are Alice and Carol supposed to finish the game without Bob's keys?
* There could be workarounds, but right now I don't know what they are.
* Something must be done. Rampant cheating in the online poker world is killing the game, which is a shame. Let's put our heads together and see what we can do.
Look further down on Wikipedia, it describes an option with 2 or more servers (then one is yours, the others are servers by random people willing to make your game more trustworthy). Or share the keys with the server. Or put a warning on screen: LEAVING WILL RESULT IN LOSS OF ALL CHIPS PUT IN BY YOU + A FINE. On leave: everyone gets their chips back. Losing persons chips get distributed to other players, when someone just made a huge raise and the person left, calculate a fine based on that (assuming the person left because of the raise). I do not suggest the last option.