I bought the app, despite the reviews and put it to the test yesterday. I was thrilled to be able to walk out of the house without either shuffling paper or adding the cache information I wanted as ICal events and syncing them to the phone. I put the system to the ultimate test as I was geocaching on an island in international waters and I knew it would pick up the 20 in Canada I could not get to if I was not careful. It did, but as I shifted my location, it all worked out fine. I could make a list of the problems (and bugs) but for the most part, it was a wonderful compliment to my Old version of the iphone and my old ExTrex. I got my ten dollars worth in just two days.