Here is the best early first-impression review I've found, and some great photos from someone using the 13.3" for one day. http://techcrunch.com/2010/10/21/new-macbook-air-review/ I was especially glad to read this part, and I know I'm not the only one who was wondering about this, but good news!: "Speaking of heating issues, Flash heat-ups aside, the Air sits noticeably cooler in the lap than the MacBook Pro does. And the thing runs absolutely silently. Even when I had Flash blaring, there was just heat, no noise."