I am a 7100T user and managed to get the screen scratched in several places during a bike ride. I used Meguiars Plastx Clear Plastic Cleaner and Polish and it did a terrific jpb at removing the scratches. I strongly recommend it if you have scratches.
I also purchased a screen detector from www.boxwave.com
which I learned about on this forum. Although expensive at $12.00 for one protecter, it appears to be durable to handle pretty much anythoing I'll throw at it.
Just thought this would be benefical for other users.