On the Arcade Dev site (http://arcadedev.emuvibes.com), I just released a Taito F3 demo, with source code. I have also been messing with getting my Frog Feast (http://frogfeast.rastersoft.net) game to work on a Puckman Pockimon (http://www.klov.com/game_detail.php?letter=P&game_id=10991) arcade board. It currently doesn't work, probably some protection issue, which I am looking into now. The board contains a Sega Genesis pirate chipset (minus the Z80).