Doesnt work for me.

As a B777 pilot, Ive had this app for nearly a year, and cannot get anything but the attitude indicator to work. The gps signal never locks on, so none of the other functions work. (No, its not in the "airplane" mode, and I place my iphone on top of the glare shield where it should be able to receive a good gps signal).

loboken about V-Cockpit GPS