map this! is great, that is all. --- http://deniska.dcemu.co.uk/diy-simple-psp-...okup-30035.html http://deniska.dcemu.co.uk/mapthis-0-5-20-...psps-79825.html http://en.wikibooks.org/wiki/Map_This! http://dl.qj.net/MapThis-0.5-(1-Year-Anniv...14340/catid/151 just soldered the adapter with a cheap remote control from dealextreme and a mini usb cable i had lying around. my holux gr-231 is working a treat with this and only cost me a 1/5 of the official gps kit.