Yes you definitely should get something between the keyboard and screen. I bought the radtech screensavrz from the post a couple above me and am waiting for it to ship. I actually returned my macbook air to best buy and had them give me another one because the area between the keyboard and trackpad made 2 3-4 inch marks on the display that were permanent (meaning no matter how much you tried, you could not get them off of the display). Those marks actually affected the underlying LCD also because where the marks were, there was an area that looked similar to backlight bleeding where at one angle, the area where the marks were was noticeably lighter, and if you tilted it the other way, it was noticeably darker. Now, i keep the factory thing that was under the lid when i bought it on until the radtech ships.