A bit of a noob question perhaps, but I didn't see anything when searching so...
I just acquired a Magellan 315 handheld GPS reciever, along with a serial cable. According to the manual, it has NMEA 0813 capability... So am I right in thinking that I could use it instead of a usb or serial GPS mouse? That would be pretty nice, since when I get somewhere I can take it with me

Ideas?