Well done application. I like the option that if you use the map feature and go back to the application, it keeps your log page. Haven't used the compass to find a cash, but just walking around a little bit, it seems to work well. The ability to filter finds and log caches will be a nice upgrade.
I'd also like a feature to see search results in google maps rather than in a list, with selectable caches. I'm sure that it's a lofty goal, but shouldn't be that much different that the native maps program that allows you to obtain additional information on a search item by selecting the red pin in places there.