Hello there! I'm pretty new to caching, and I have a MotoDroid that I purchased the official Geocaching app on. When I was first using it, it was kinda spotty but then I downloaded a free app called "GPS Averaging"... It looks like a blue satellite image. I know your question regards Wherigo, but on a day when I am going caching, I will pull this up, it can take a couple minutes, and you have to be outside, but it aligns your phones with almost exact GPS co-ords...I am usually showing an accuracy to within 5 feet, unless I'm in a forest, then it's sometimes 10-15 feet...Other times I hit my "Maps" app that came on the phone and I go to the street view, again, while outside, and that will show how close to your home location it has you near...I hope something here helps you!!! Oh, and if you download free app "c:geo", and hit live map button, that could help maybe too? Good luck! Let me know if any of these things help!