How to enable tethering on iPhone OS 3.1.2
The Apple iPhone supports tethering since the release of iPhone OS 3.0, but in many countries this awesome feature is blocked by the phone companies. The video below shows an easy and fast way to enable tethering on your iPhone running iPhone OS 3.1.2 so you can gain internet access for another device, e.g. a notebook. The only thing you need is a jailbroken iPhone.