Blackjax

This is nothing more than a Blackjack game written using the Ruby on Rails framework. But, there are some cool things associated with it. The first is that it's driven completely by Ajax calls. The second is that it's using the new Rails RJS templates that clean up Ajax code tremendously. I encourage you to download a copy of the source if you're interested in any of the aforementioned things.

Source - BlackJax.zip (144kb) Over 10,000 Downloads!
Demo - http://blackjax.pjhyett.com/