Lasbitvegas.com is a browser-based (HTML5/JS) gaming site using Bitcoins as a currency. Currently we have 3 games. Cointoss, Blackjack and Oasis Poker. Bets start from 0.05 coins.
As far as I understand it bitcoin transactions are public transactions between anonymous parties. If someone captures your wallet then they could look at every transaction you made.
However, is there a reason why you couldn't prevent that and maintain your privacy by destroying an older wallet?
Every transaction still stays in the block chain. So it is traceable. You don't have to own someones wallet to see their transactions.