I'm frequently taking pictures without stopping on my bike. I can do this easily with Canon Digital ELPH series cameras but with screen lock, small shutter button and much lower shutter speed I haven't tried very hard with the G1. Garmin eTrex works great for GPX because the batteries last >20h and pack two more AAs for a second 20h. Also I don't need a network to see the OSM data (with maplint errors highlighted).