I've recently changed (upgraded!) from a Nokia 5800 to a Blackberry 9300 Curve. First I discover that I can't buy the Geocache Navigator which was so useful on the Nokia, I can only buy a subscription. Why? Second, for some reason, I have the only GPS Blackberry model that Handmark says is incompatible with Navigator. Are there any other geocache apps that might work with Blackberry 9300?