I am currently developing a mobile editing application for the iPad. The problem I am having is with the magnifier. During development it seems to work fine. When I tap and hold the map the magnifier opens. When I change the code signing and archive the application for ad hoc distribution and install it on the same iPad I use for testing it stops functioning. When I tap and hold the wait spinner opens but the magnifier never opens and then the wait spinner goes away. If I change the code signing back to my developer cert. and debug against the iPad again it works.