I had a 2008/2011 and the new 2013 iMac. I notice small scratches on my 2013 iMac, the problem is I cleaned once and never really checked the glass before, even now I need a flashlight to check it. I noticed some small points near the edges that won't go away. My 2008 and 2011 iMac have zero scratches, and I have MacBooks, iPads, iPhones... never had any problem with scratches. I started thinking it could be the cat? But why not the older iMacs? Or the 55" glass TV? Do you have the new iMac model? Is it easier to scratch? Does it came scratch free? Did you notice any scratches after cleaning?