r2btms

I have an iPhone 4 and routinely get down to 10 m accuracy, often 5 m if there's no overhead cover. There's nothing special needed to make this work, just location services. The GPS unit is built in. Is it the accuracy or precision which is out ... that is, does it has a high confidence about the location (in the geocaching app, down to 10m), but the location is wrong? Or is the precision consistently out? I recently bought a 3G iPad 3, and the GPS unit seems better - routinely down to 5m. Plus, full screen apps like GeoBucket are pretty good compared to the 2x scaled geocaching app. r2btms