Rotating the display up.
Apple used orange stickers to number the connectors to the logic board 1 through 6.
The camera is located in the upper right corner of the phone. Unfortunately, it connects to the bottom of the logic board, meaning you'll likely need to remove the logic board from the phone to remove the camera. We haven't tried removing the camera, but would assume that like the original phone, the camera can be removed for those wanting to bring their iPhone 3G into secure locations.