+1 for Boxwave, they are just like the OEM HTC screen protectors. Granted, they are not scratch proof, but once they are on, you cannot even tell its there. The Zagg and other brands are rubbery and sticky feeling, making it impossible to scroll your finger across the screen of the phone comfortably.
I had a Boxwave on my Vogue and I'm about to order one for my Imagio right now.
http://www.boxwave.com/accessories/h...ctors_3730.htm