Share any iPad or iPhone’s data connection with iTether
Amazingly, Apple approved an app called iTether that lets you share your iOS device's data connection with a Mac or PC over USB -- regardless of whether or not your carrier allows tethering. Even more surprising, maybe, is that it works with 3G-enabled iPads, too.
http://feedproxy.google.com/~r/TheAppleBlog/~3/5sV52UqjSRY/