I got my Nav Protector today and installed it. It fits perfectly. Here's some recommendations for installing the protector . . .
Pickup a 100 count box of powder free latex gloves from your local kitchen or medical supply store. I use them for working on all my cars, as they keep my hands clean and are strong enough, yet thin enough to provide all the feel I need (I cook with them too - great for handling raw chicken, pork, etc.) Keeps fingerprints off of things too.

This does not mean you can touch the adhesive side of the protector, but it's added insurance.
Get an eyeglass cleaning kit (solution and lint free cloth) to clean the NAV screen before applying the protector.
I had a bit of trouble getting the bubbles out, but using a credit card (wrapped in the cloth) did the trick. The Nav Protector takes up virtually the entire screen - little or no gap on any side. Seems to be doing it's job - touch screen functions work just fine.
Hope this helps.