Does anyone have any experience with these? http://www.radioshack.com/product/index.jsp?productId=29392276# Just bought a new Retina MBP and would love to keep the screen pristine for as long as possible. These are cheap and I'm not even sure they'd fit new models. (The old 15 incher is pictured.) But I see them at the store often so was just wondering if anyone had taken the gamble. I should probably just buck up and pay for the Moshi.