Does anyone use an anti-glare film for their MBA? How does it work if you do? Does it look like it has a film on it, or does it just look like a natural matte display? Also, are bubbles, wrinkles, or imperfect application a problem? I would really appreciate it if someone could upload some pictures. I think I just may pick up a MBA and the 24" LED Backlit display. Thanks for your help!