West coast, and I should still be asleep.
I don't really know anything about calibrating the screen, but if I had to guess I'd say it isn't something that needs to be done with the newer touch screen technology. While it was common on the old resistive screens, like Palm PDAs, I can't think of any capcitive touch sceen device that has a calibration mode. That includes my Droid X.
It might even be as simple as why bother. It isn't like you can achieve pixel point accuracy with capacitive screens anyway.
Any way, last post for the night.
P.S. Believe me, I'm no expert. Just a guy with to much free time on my hands and a near compulsive need to answer a question once it has been asked.