I use my car's Garmin Nuvi 350 with a handlebar mount I found on ebay. I reset the log at the beginning of my ride and it gives me current/avg/max speed, total mileage for the day etc, it's perfect for biking. I downloaded a bike icon so I see handlebars running around on the map. I turn my handlebars left, the gps handlebars turn left, kinda cool Last season I was messing around with creating POIs through the Cleveland Metroparks system of paved trails, that was fun. It never died out on me but I'm going to look into a solar charger for it anyway. That would be useful on an all day ride if it actually keeps it charged but I don't know how well they work. Probably not well enough to keep a gps with the screen always on powered. Anybody ever use solar chargers on their rides?