WARNING: Not for the faint of heart.
HERE is a video of a guy who takes a key, scissors and a razor to his HD2 screen and didn't show any scratches.
I could hardly watch doing stuff like that on purpose. The thread I found it in over at the XDA dev forums (
LINK) had people responding saying theirs did scratch, so I would rather be safe than sorry on this phone.
I have no doubt that the screen on this phone is more scratch resistant than my Touch Pro 2 plastic screen, but I am not going to risk it. It would bug me every time I looked at it if there was a scratch on the screen.