AWC Blackjack is a multi-player blackjack game under development but currently available for testers to give feedback and help improving the game. The back-end game server is entirely written in PHP, and the front-end is pure AJAX. Only about 33K to download at the moment (excluding graphics). The game doesn't use any JavaScript framework so I think there is a lot to do in addition to some graphic design work. But the demo plays great for blackjack fans. Tested with FF 1.5 and later on winxp, FF2 on Linux and IE6,7 winxp.

AWC Blackjack