A developer has managed to hack his way into getting USB tethering to work on the recently release iPhone 3.0 beta – He claims he was “hacking around” with some carrier bundle files and iPhone 3.0 and somehow managed to activate the tethering preferences, that’s some epic iPhone Hacks! Not only is that epic but he was successful on tethering his iPhone 3G to his laptop! If you don’t know what tethering is, it’s a feature that allows you to share your iPhone’s internet connection with your laptop, but has not been allowed up until iPhone 3.0

Based on the images above, it appears you’ll not only have the options for USB Tethering but also bluetooth! Pretty awesome, eh? Sadly, the developer doesn’t know what he did exactly to enable this feature. Very sad, indeed. Apple had admitted tethering capabilities were built in into the iPhone 3.0 firmware but had not yet coordinated with mobile carriers. Very clever iPhone 3G Hacks and developer!

- source: macrumors.com