I have a Samsung S5 mp3 player and it's got a hard clear plastic face that I've totally buggered up. I've dropped it twice on linolium floor and then kicked it and sent it skidding for about 10'. :'( So I've learned my lesson not to run with it in my shirt pocket. [roll]
Think there's any way to get the scratches out? It's got a touch sensitive screen, you know, one of those non-moving parts buttons thingies. This is what it looks like w/o scratches.
(http://johnpyun.files.wordpress.com/2008/02/samsung-s5.jpg)
I've used Meguiars PlasticX for pretty good results on my monsters dash lenses and the face/screen of my 'classic' ipod. The ipod had the normal light scratches and shit that comes from being toted around a lot and the Plastic X buffed it back to a mirror glaze. Some folks suggest polishes Plexus which I don't doubt are good.. but the Plastic X was 1/3 the price and could be obtained at the local auto parts shop
The Meguiars stuff is good.
I have no idea about the touch screen.
At least on the iphone, the touch sensitive "digitizer" is underneath the glass. I had a cracked one that I used the touch screen on for 3 weeks.
You may want a second opinion, but I'd be very surprised if Meguiar's would affect the touch feature.