Alternative to pressing home button to stop rearranging apps?
On iOS 5 to 8: Pull Down the Notification-Center!

You should swipe down just a little, else you get the notifications!  Still stops the wobble, bit not what you want.

So a little swipe from Top to the Button solves your problem!

Source: http://www.macbug.de/2012/01/22/ios-5-geste-zum-beenden-des-app-bearbeitungsmodus-2/