I'd guess that as developers play around with the pointing, they'll come up wiht better and better ways to calibrate it as accurate as possible.
My only problem with it so far is that it has a pretty limited range. With a 50 inch TV, my best viewing distance is right on the edge of the sensor bars limit. I was thinking of getting a 3rd party one to see if it worked any better, or getting a couple of IR lights and making my own.







