Download Pyrism for Pocket PC. Requirements are as follows:

Pocket PC 2002
Pocket PC 2003
16MB total memory.

600KB Free space to install.

The instruction manual is included in the .zip file under important information.

Active sync or comparable software must be set up to install. You may also be required to install the runtime files for Pocket PC. You will be notified of this during the installation of the software.

Trial version includes all three A.I.'s and a few maps, full version includes all maps.