Looses half the time, or half the ride If I pause half way in a ride (a shopping trip, for example) or just stop moving for 5 minutes, then the final time is only the time if the segment, after the pause. Yet the map and total mileage reflect the entire ride. Also the first time I used it it lost the whole first half of a ride. I have no idea why.
Too many shortcomings I wanted to use this to contribute data, but as others have commented, the timer runs before GPS gets a position, and pausing makes that process start over. So almost every ride is wrong for time, distance, or both. And some of the useful stats like average speed, you're shown once, but once the trip is submitted you can never see it again. Makes it lousy for a personal ride tracker, and bad data makes it questionble for municipal use. Painful.
Unreliable Only records my ride about half the time, even when a gps lock is obtained before starting. Great idea though!
Interface a bit confusing, even after many weeks. Works on Galaxy S/Samsung Vibrant.
Needs GPS time delay Needs to have a function where it locks onto GPS and then starts recording. This problem distorts the data collected.
Handy but incomplete, it deletes rides I forget to "finish", and never show me the route. The mileage is accurate though and that's what I needed!