I recieved mine yesterday and applied it to my Nuvi. Went for 150mi ride and was rather impressed. Sunny day and the glare was much improved. Not perfect, but it never will be with direct sun exposure. I like it and would order it again. Much better that's for sure.
Well after talking with one of my power boating buddies he suggested that I try a product by NuShield called DayVue. This is a Anti-reflective film that applies to the screen of your GPS. After applying it yesterday I must say that I am 100% satisfied with the product and I can easily see my GPS screen in the sunlight.
I would highly recommend this to anyone running a GPS that has sun glare issues.
2 films cut for your unit run about $15.00
Also, here is a 10% off promo code: NCLP10
http://www.nushield.com/dayvue_technology.php
i ordered mine, no problem, paid with paypal, no problem, ordered for my Zummo 550, no problem.
Got it today...Problem. I can't for the life of me figure out why they send two 3" X 2" screen protectors for my 4" X 2" Zummo screen!!! It makes no sense to have to use two, and cut one to add an extra 1" in the length. They HAVE to have screen bigger than 4" X 2", right? Sent them an email, awaiting their wisdom on this one. I will update when they share that wisdom