Once an exploited feature of the Android over the iPhone... 3G tethering AND the ability to create your own WiFi HotSpot comes to the iPhone by way of, in my opinion, the greatest jailbreak app available... MyWi 4.0 by Intelliborn.
Create a WiFi HotSpot with a press of a finger! Wherever you are - you can connect your laptop or other mobile device to your iPhone easily!
Learn how to install MyWi 4.0 on your iPhone and iPad 3G here!
