Thanks to the new Wifi tethering functionality offered with Firmware 4.3, it is now possible to call someone in FaceTime from your mac connected to the shared network of your iPhone! We have indeed test and no clamping seems to be made to make this type of call.
Just forgotten by Apple or the beginning of a wider opening to functionality?
We can only hope now that there will be no clamping on the iPod Touch and iPad latest generation equipped with FaceTime.
We discuss it on the forum.