Resetting the Admin passwort for the sfirm software is still very easy. On the login screen you’ve to press Crtl-a and a window with a code is presented. With that code the sfirm customer support can generate a pin and here you go again.
After 3 month experience with the Iphone 4 I’m really happy to upgrade from the Iphone classic. Only one time in Bern/Switzerland calling wasn’t possible, even with the bumper. But this was maybe a roaming problem. And the retina display is extraordinary beauty.