I would be interested in learning if cathyy's alternative method would work on OSX 10.6.5 and iTunes 10.1 with an iPhone running 4.1. Some prior Googling on an alternative possibility led me to believe that the method of which cathyy speaks only worked with a prior version of iTunes and many users were reporting a failure to connect, and a recommended solution was to install a missing dll file, and another comment by a user was that "a small patching of the CommCenter is necessary, but there are also other methods for enabling the tethering again". Does someone have a "step by step" process for the method of which cathyy speaks (but for for current software / firmware)?