It’s not a film canister, but I see where you’re coming from. It is a photography tool though, and a mighty powerful one at that. This little wonderful device is my newest toy, the Holux M-241 GPS Logger.
I’ve dabbled with GPS technology for years, and couldn’t live without my little Garmin Nuvi in my car, but this is a bit of a different device than GPS’s you’ve seen before. The M-241 has a high accuracy 32-channel GPS receiver that simply records you’re longitude, latitude, altitude and time. The memory in this thing is impressive, it can store about 130,000 data points.