I know the Geocaching App is not intended to work on the iPad, but it was working pretty well on my iPad2.
Since I upgraded to The iPad "3" with iOS 5.1, the 4.6.0 version of Geocaching don't even open and crash instantly.
It's too bad that we don't have a working iPad version at least for a home use with the ability to share the saved tracks with the iPhone.
Or may be I missed something...