My MacBook is 19 months old, so while not exactly due for an upgrade, it's over that sort of 18-month line before which buying a new Mac starts to becoming collecting rather than upgrading. The MacBook with an external monitor, mouse and keyboard will become the family Mac, replacing a an older, non-Intel Mac. I can only sync my iPhone with one Mac, save copying purchased music between Macs on which I maintain my iTunes account, right? For example, if the 80GB MB Air is overall not going to have enough storage for all my music and video that I wish to have access to for my iPhone, then I'll have to sync my iPhone with the relocated older MacBook (with upgraded hard drive), using my .mac account to sync iCal, contacts, bookmarks, etc., on the MacBook Air to the older MacBook, then sync my iPhone with the older MacBook. Correct? How does the speed of the Air at 1.6 GHz Core *2* Duo, 4200 RPM PATA hard drive drive, 2GB RAM compare with a a standard MacBook, 2.0 GHz Core Duo, 5400 RPM SATA hard drive, 2GB RAM? Slower, faster or about the same? For my uses, the 802.11n WiFi on the Air vs. the 802.11g on the standard MacBook doesn't matter, as streaming music and video, even HD video, from the standard MacBook works fine over 802.11g, and our WiFi router is in mixed mode, not pure 802.11g. All else, the bottleneck, per usual, is our 10Mbps broadband Internet connection. Time Machine for Air won't matter either as the sort of work I'll do on the Air will back-up hourly to my .mac account in a couple minutes, and take up very little space. I know there are other advantages to Time Machine as I use it on my standard MacBook now, but for the limited-scope use of the Air I intend, it just won't matter. In the rare case of a full restore, it will take as long to do that from Time Machine as it would to reinstall Leopard, iLife, a very few small third-party apps, and restore my .mac document back-ups. I use TM for the hands-off back-up solution, not for the back-in-time features. Also, again for my uses, the difference between the integrated graphics chipsets in the Air and my older standard MacBook won't matter. Nothing I do is slow now, so upgrading the to the newer integrated graphics will have no significance for me. The optical drive is not an issue. I'll have one handy in the standard MacBook. There is one thing for which I need FireWire, but that's available on the standard MacBook I already have, I don't use it much, and I can use back to my mac or just local network access to get at the resulting files if I need them. Anything else better suited to more ports, larger display, etc., can easily be accomplished on the standard MacBook attached to the external. So here's the quandary: the point of buying the Air would be reductionism, or simplification. Ultra-portability will be nice, but I already have super-portability in the MacBook. If the Air will be slower than the current standard MacBook, the purchase makes no sense. The keyboard is important, although the Air keyboard seems much the same as both my standard MacBook keyboard and my external Apple wireless keyboard. Bottom line, the problem is, for me, though I find the Air appealing, I do not like nor have need of maintaining two Macs. My desk at home is my office. I drag my MacBook around the house, sure, but should I leave the house, my iPhone is all I need. I don't take a computer on holidays. It seems like I'd be paying $600 over the cost of a new iMac, which would better suit my family over a portable with an external display, keyboard and mouse attached -- while losing a built-in optical drive, which is a convenience. Losing an hour off max battery-life rating. Losing the option, should my battery fail, of walking into the Apple Store and having them swap it out with a service part (I have AppleCare) rather than wait for them to schedule a replacement appointment for stores with bench service, or even wait for them to send it off. Lose the option to further upgrade internal hard drive storage should I need it or merely find it convenient to have more internal storage. All for an Air that will be essentially the same speed at best, require at least some effort in syncing with the existing standard MacBook, and be two points lighter, which just doesn't matter if portability is within a single structure, not across the country, same footprint, and less than one-third inch thinner over most of the Air's body, which just doesn't matter period. The backlit keyboard is nice. I had one on a PowerBook G4. It was an interesting feature, but I never used it. Ultimately, I think I want the MacBook Air because it is "cool" and "looks neat". That's why I foolishly, impulsively bought an iPhone, although I was fortunate the iPhone indeed did turn out to simplify my work and personal life, and is the only PDA-like convergence device I have ever been able to tolerate for more than a month. I don't see a repeat experience with the Air. I'm sure I'll enjoy owning it, but sooner rather than later it will be just something else with which to keep up. I'm sure anyone whose office is separate from their home, or someone who travels fairly often for work no matter where they keep their office, the Air is likely a good fit. But for me it's like buying a somewhat more portable notebook to extend an already quite portable notebook. It seems upgrading the family computer to a current iMac -- not that they are really hurting with what they have, not for their regular uses of a Mac -- would cost less, yield more and also not complicate my situation further, which is totally contrary to the whole point I'd buy an Air. I'd frankly love to read someone convince me otherwise, but I just don't see it, not for me.