Summary: I love the 13.3" Macbook Air, I love not having a hard drive, I love how light it is and even with only 4gigs of RAM with the SSD drive I find it plenty fast. Unfortunately the display has a brownish/yellowish tint to it. I had Amazon send me a replacement but it's display was even worse. A lot of research on the web found that this is a common problem, inconsistent displays.
Summary: Great little laptop, really like the multi touch. Garage Band is cool and fun to play with. But: Does not handle WEP encryption well. So while you might run WPA at home, if you are at a hotspot running WEP, good luck. Even running WPA on my 802.11G router I notice irregular performance: ping will return 3,1,6,3,129,5,34,45,2,3MS with an occasional request timed out. My work Dell running XP will yield consistent replies <1MS. Something's not right there.