[pcedge]

I have had an Invisible Shield on my Creative Zen for several years. I returned the first film because it was so difficult to install that I ruined it. That was OK, though, because they shipped me a free replacement, before I sent them the original back. The second try, I still had some permanent bubbling/dust/gouges, but the unit is well protected. I tried the key-scratch test, and actually scratched the IS film - didn't really use much pressure - it is just getting old? Doesn't really matter, the Zen is biting the dust as we speak, but it has no damage on its surface.

My wife and I both purchased HTC Diamond/Touch Pro, today, and will likely get IS for these - I want the full-body and she wants the screen-only protection. I was surprised to find the face-only model for sale at Best Buy, but way over the Internet price. I am concerned about the tacky feel to the screen, too.

Whichever skin I select, at least I'll feel better knowing that there is something to help prevent scratching - I don't expect any more than that from a film.

Good luck.