Iphone USB tethering

This page is inspired by Android_USB_Tethering, and only documents the differences.

= Tested Devices =
 * iPhone 4S, iOS5

= tools needed = found in dberkholz's overlay. You can set up the overlay with Layman.

= results = if ipheth-pair is installed successfully, plug in the iPhone with USE cable. We will see, e.g.