How to Tether iPhone 3G to use as a wireless modem
This is a video demonstration on how to tether your iPhone 3G to a Mac laptop to use the 3G network for surfing the web on the laptop. This is against AT&T's policy so try at your own risk. This is in place of the NetShare app that keeps getting removed by Apple or ATT. This let's you connect your computer to the 3G wireless network by using a proxy on your jailbroken iPhone.