Shoddy Battle

Shoddy Battle - Pokemon is a truely free online Pokemon game - free to play and open source (meaning anyone can copy and modify it). The game is based on most of the Advance (Pokemon Ruby/Sapphire/Emerald) and Jewel (Pokemon Diamond/Pearl) games and is made for Windows, Linux and OSx - Thats right an online pokemon game for Apple OSx!
http://shoddybattle.com/