I previously had an 11" ultimate. I didn't notice it at the time but turns out the screen hinge was really strong- I could have it even at the shallowest of angles and it would hold. I saw a good deal on an 11" 4gb 128GB 1.4ghz air with applecare on ebay so I bought that and sold my ultimate (i wasn't bothered by the 0.2ghz drop in processor and value the applecare more) I noticed when I got it that the screen tended to close itself even from about 45 degrees. Should this be happening? When the fans are going I like to open the lid a little to increase the air flow (is this even beneficial?!) but with the hinge in it's current state I can't as it always just closes on itself. Are apple likely to replace it? I've read that it can't be tightened.