I got a replacement 24" iMac because my first one arrived with numerous problems (scratched screen, noisy fan, flickering display). For the first 10 minutes I thought the replacement was perfect but then I noticed a tiny speck of dust on the display that I couldn't clean. I realised it was behind the glass. I was about to call Apple and get yet another replacement sent out but I saw the disassembly pictures and noticed the glass was only held on by magnets and that they took it off using a suction cup tool. I didn't have one but I went to the car and brought back my TomTom GPS holder, which uses a suction cup to attach to the windscreen. Amazingly, this worked brilliantly and the glass part came off easily. I cleaned the dirt off the back and put it back on and now the machine is indeed perfect. Taking the glass off was one of the easiest things I've ever done as far as computer maintenance goes. It really is just a few magnets holding it on and when you have the suction cup on it then it just simply pops out. I noticed that the entire section really is just a black border, some magnets, and the glass, and that the screen obviously doesn't reflect much at all with the glass off. I imagine it'd be very easy for a third-party to make a section that was just the black border, without the glass, for those that don't like the gloss. In the meantime, if you hate the gloss with a passion the machine works just as well, and actually looks decent, if you just leave the glass section off altogether!