I got a MacBook about six weeks ago or so. I was slightly anxious buying anything that major that close to Macworld. The last computer lasted about 3 years, and if Apple hadn't made the Intel switch I'd still be using it, so I don't upgrade often. (But the Intel Macs are soooo much faster.)
Anyway, the MacBook Air was rumored then, but the rumored price was higher than a plain MacBook by several hundred dollards (although the rumors I saw said about $1,500, not the $1,800 it came in at.) And it was just a rumor, so I bought when I did.
And I'm glad I did. The MacBook Air is clearly not intended to be a primary computer. (or rather, if it is your primary computer, you don't need a computer.) Limited output options, limited RAM, limited storage. This is a portable executive's machine. Someone who just needs Office, Web, Email, etc. So, good for them.
The iPhone software got revved, but not the hardware. I can sit tight for a while on that one as well. I'm in on round 2.
AppleTV I don't get, still. Frankly, I'm all toyed out on the Home Entertainment section. I gots my TiVo, I gots my DVD player. Finally got an HD TV in August. (The first TV I've had to buy. All the previous ones, including the 15 year old it replaced, came from dad.) AppleTV doesn't scratch any of my itches.
Time Capsule is interesting, but I don't need it.