So, you're basically stating that the MBA will be a great product in 3 years from now. Apple already had a similar problem when they produced the Apple Newton: Too early, too short.
Yeah, I said the same thing about the iPod in 2001 - it's another Newton, no one is gonna want one of those expensive things. See how right I was.
The MBA is a very intriguing product. It is on the high-end of price and the feature set seems a little short in some areas (hard drive space!) But it really has some interesting characteristics:
1. SSD "hard drive" - I think this is the future for laptops and Apple is the first major brand to introduce it. Haven't seen anything about its impact on battery life though, that would be VERY interesting. Like the iMac without the floppy disk drive, I think that this is where computers are going and Apple is leading the way.
2. The whole "Air" thing. Apple has put a lot into wireless. They were first out with the Airport - that led to the mainstreaming of home wireless. I still remember Jobs saying it could handle a 10,000 sq/ft house - fine for most people who are not Bill Gates. Now look at 802.11n and entire product lines built on wireless home networking (Apple alone has AppleTV, iPhone, Airport Extreme, Time Capsule, iTouch, plus Airport in all shipping Macs). The things are everywhere. I used to think about how to wire just a couple rooms in my house. I'm not really thinking about that anymore. Go to Starbucks and many airports in the US and you have Wifi connectivity. I think that is the future.
3. Lack of a DVD drive. Very interesting. I think you will still want access to such a device, but hey, Apple is letting you share other computers drives in addition to having a small portable one. I happen to think CD/DVD are good for things like backups and sharing photos with family, so they might not entirely die (maybe replaced with follow-on technology). Apple would say that they have several products that fill those gaps (Time Capsule being the most obvious). Still, how many people actually use the drives while on the road? I suspect not all that many. Hence, you can save the space and have it as an accessory.
4. Battery - I think, like with the iPod, the battery issue was more a design decision than anything else. They couldn't easily make it removable, so they didn't. Plus, the thing is 5 hours. Maybe not quite enough for transatlantic, but still pretty good. I think the point about future batteries is well taken - if you get 20 hours on the battery, who needs to swap? How many people carry spare batteries as it is? I thought that was more a relic of the time when batteries lasted only 2 hours.
5. Weight - as long as the thing fits in a standard carryon, then weight becomes the big issue. This thing is light and that is important. I agree with the earlier comments that Apple is defining the category by weight and not footprint. I wonder if consumers will think the same way?
The MBA is a very interesting product. I think that, like the iPod, the second and third versions are going to be much more popular than the first one. With refinements and upgrades at the same price point, I think in 18 months you are going to be quite pleased with Apple's laptop offerings. The question I have is the extent to which MBA will take away from either the high-end offerings or bump people up into the new MBA-realm from the iBook arena in the low $1,000 range. Apple is interested as well. If they push people up from the low-end, then they will make a lot of money. Not sure about the high-end shift to the middle though. Perhaps that is why the feature set is a little limited? They don't want to cannibalize the high-end, they want to move people from the consumer range.