Double Chess for PalmOS Cost: $15 Get the full version     Trial version     Developer's Website Contacting third-party download site please wait. If your download does not start, click here, or get the full version Descriptions Double Chess for PalmOS: This program lets you play either single or double-board chess. It is designed for quick games. Double Chess takes full advantage of the Palm interface. As well, you get the full source code for the game. The demo version allows you to play up to 5 games before it expires.