I jailbreaked my iPhone4 32GB yesterday and Žnow i have big Troubles within the MAPS- Application:
It works fine until i go into the "behind"-menu to change to drop pin or change the view to satellite or maps. After going back to the front, the map is frozen.
i have to shut down maps via double Homebutton and closing ist in the "last used apps row" or via sbsettings.
After restarting maps everthing is fin until i touch the "behind"-menu button again.