Need to be harsh here
I agree that the concept is good, but since the execution is totally flawed (Whenever I try to save a photo for further processing the app crashes), I can only conclude that we are simply their beta testers and that the app is otherwise useless.
I tried to contact the developers but the iTunes link did not connect. To aid the developers my device is an iP4 running iOS 4.3.
Lets Be Objective about
4xScanner - Smart Stitch!