Posted inHOWTO

iPhone Tethering on OS 3.0 [video]

murdaFSM

Here is how to do it : HowTo: iPhone Tethering on iPhone OS 3.0 (AT&T) . And here is the proof or preview :

Also read : iPhone OS 3.0 First Look and Download Firmware 3.0 for iPhone and iPod Touch

[Thanks to Rob from PimpvilleDeli]