I remember the WTF moment I had a couple years ago when Frozen Bubble was released. The game was nice but the awesome bit was the it was based on PERL, which was my programming language of choice at the time.
I had that moment again this morning when an email arrived in my mail box from Rubem Pechansky (The WinBinder Guy) where he announced his Worldcup 2006 card game which is based entirely on PHP5 and Winbinder.
The game, 32cards is a digital card trading game with tons of data about each country for each card. On each turn, the topmost card is uncovered and five stats are compared. The player with the highest stats wins and points are awarded. You can gabs this great example of how flexible PHP really is (and try out a pretty cool game) by heading over to their site and grabbing the download.