I don't think the MBA could be a primary machine for me but I was in the Apple Store every week for the past 3 months checking out MBAs. using them, opening and closing and picking it up. Every day I'd go home and shop for a good eBay deal, check macrumors and lust after this machine but my only concern was the screen size since I'm a power user and demand a ton of space and a long battery life. After WWDC I bought a 3.06Ghz 17" MacBook Pro w/ 256GB SSD. It's the best notebook I've ever owned but there are a few downsides. 1. Heavy 2. Large 3. unibody wrist wrest really hurts my wrists. It's freaking sharp. 4. a hefty financial loss if stolen or lost. I'm trying to finish my book and the weight, size and discomfort of lugging it to the coffee shop every day just gets old. Once the thing is open, I'm in Mac heaven! 1920x1200 resolution, super fast Core2Duo processor and full screen writing in Pages '09 is totally amazing plus I can write for a solid 7 hours without plugging in but i get wrist pain from the ultra-sharp edges the MBP unibody has so all of this is for nothing.... So last night I broke down and bought the MBA 2.13 w/ 128GB SSD and AppleCare. I couldn't be happier. The front of the computer is so thin, I wrote for 6 hours and never felt any discomfort. Unfortunately, I did have to plug in but the power adapter after 3 hours but it was so small that I put the adapter in my cargo shorts pocket and carried the MBA under my arm (no backpack needed). The speed is not a problem. i had Twitter, Pandora, Apple Mail and Pages.app opened. The SSD meant they launched ultra-fast and the processor kept up with my typing (not a huge task really). When I had to RDP into a few servers at work, it was easy and fast and I felt liberated from the 17" Macbook Pro. The MacBook Air doesn't weigh me down and is "fast enough" for 95% of what I do. My 17" is still reserved for Call of Duty, Sim City, Final Cut Express and Aperture but that's only 30-45 minutes of my daily tasks and I can always do that when I get home. When I have to go into the office and stare at spreadsheets all day, the 17" will still be my primary machine due to the ultra crisp screen, ports and hard drive size. BUT The MBA is going to be the computer that I finish writing my book on and since twice a month I'm on an airplane going to conferences, the MBA is the computer that will go with me. I went to LA last weekend for 3 days and the 17" was just stupid. I couldn't use it on the airplane, airport seats felt cramped, taking it with me on a lunch break was too much. it was just a massive machine for traveling. So although I don't think the MBA could ever be my primary machine (unless it had 4gbs of ram and a 2.6+ Ghz processor), I do think it's the best 75% machine for what I want to do on a computer. I spent 6 months deciding between Netbook or MacBook Air. netbooks are super slow, I'm kinda forced to run windows XP and the keyboards are always so cramped. not to mention really crappy screen quality, resolution and a super cheap feel. The MacBook Air is a fully featured portable computer with the size and weight of a netbook. Yeah I know this was a long review but I wanted to share with with anyone on the fence about getting one.