My iPhone is jailbroken (Pwnage) on 3.1.2 I enabled tethering on my phone using the URL: http://appleguru.org/iPhoneTethering.html Everything appeared to go through smoothly. In the end I was able to enable Tethering. My Mackbook Pro picked it up on OSX, but it showing the iPhone as disconnected. I go back to General/Network and Tethering toggle is missing now! Tried to reperform the steps above, no success.