yesterday i stumbled onto an open source rpg engine, made for windows, mac, linux, and Dreamcast. i was thinking with a few simple modifications, this could be ported to PSP. here's the site: http://www.ljsdcdev.net/. for downloads you need to click on the "Projects" link on the nav bar. the two projects that would need to be ported are libcrabclaw and ljsdcdev.