Hullo,
It seems the glass used for the screens are very easily scratched (I have seen some new DX6is getting scratches on them within days.) I hate scratches and I wanted to keep the glass free from scratches.
I have had the thin plastic that came with the radio still stuck to the LCD screen glass. It was beginning to look really tacky and obscured the view. I got the idea of using mobile phone protectors when I had to order some for someone's phone. I have put the instructions and template onto my wiki: http://rw.id.au/wiki/rc:9x:screen_protector
I could post a photo of it, but the protector is so unobtrusive it will be difficult to see .
Russ