NOT SECURE AT ALL.
I put .05 BTC in to test what would happen and left for an hour. Looked again....LOL GONE. Anyone can just go through id/1 id/2 etc until they see some balance and withdraw it.
Anyone who puts coins in there will lose them.
1. Lol /id/x is the table number. If you are on a BTC table and you leave for half an hour you lose because you automatically fold when someone raises. I still have all my chips in...
2. @Android: Did you try the site in the Chrome app on Android? The default Android browser has never heard of ECMAScript 5, CSS 3 and HTML5. Only shitty ancient webtechnologies in the stock Android browser.