Interesting find. It also blocks flash while tethering on non htc camera apps. Obviously a battery saving move but they should give us the option...
---------- Post added at 12:23 PM ---------- Previous post was at 12:09 PM ----------
Actually it is likely the phone cant produce the burst of power required for flash while providing tethering. Im sure there are other phones that can and maybe this one can be set up to do it with a non stock kernel (which we wont get until kernel source comes out or someone builds).