Barnacle Wifi Tether

Barnacle Wifi Tether

Turn your phone into a Wireless Ad-hoc HotSpot (root users)
Turn your phone into a Wireless Ad-hoc HotSpot
Share your 3G with Windows, Mac/iPod/iPad, Linux, Xbox
Requires __ROOT__ access
Barnacle is unlimited, free and open source. If you like it, please donate by getting Barnacle Widget!
See website for FAQ, supported hardware, troubleshooting.

Link