Okay, folks, here's what I have so far for that screen protector. A link to the photos:
http://picasaweb.google.com/rogers.g...eat=directlink Click to enlarge.

I took a pair of tin snips to an old cookie sheet, which was slightly warped because of a history of having a pizza cutter run over it over the years. The warping doesn't seem to matter, but I put it so the concave side is out. I think will reduce any tendency to spin on a bulging center. My dear sweet wife had a piece of fuzz-backed naugahyde or something like that and a can of spray adhesive. We cut the material maybe half an inch smaller than the shorter dimensions of the screens. I cut the cookie sheet to 9-3/8 by 6-3/8 inches. This dimension just fits inside the buttons and the rubber pads on the corners. I rounded the corners by hand with the snips. I spent some time on the edges with a file, sandpaper, and scotchbrite to eliminate the sharpness. That industrial grunge pattern you see is the evidence of many cookies and pizzas. We don't happen to have any velcro buttons in the house, so I used a couple rubber bands and they actually work okay.