There's no way they would make it anything but glass at this point, all high end smartphones have glass screens now and they'd be stupid not to make one that is.
I believe it is because the HD2 is glass and like Genetic Bloom said, not to many high end smart phones dont have glass...but any clarification would help!
you are talking about the difference between resistive and capacitive touch screens. We knew that the EVO has a capacitive screen. But just because it is capacitive does not mean it is glass. For example, all of the Palm smart phones have capacitive screens, but they are acrylic.