Hullo all! I just upgraded my main laptop from my trusty 1.5GHz 12" PowerBook G4 to a MacBook Air, and all I can say is wow! I got a good deal on a used current-revision 1.86GHz model. This machine is amazing. It's fast, which'll be nice for most general computing tasks. It's light, which'll be extremely welcome in my bag all day. It's thin, so I can cram more stuff into my bag to make up for the lost weight But really though, this thing is nothing short of amazing. I'm in love with the backlit keyboard and ambient light sensor adjusting things. I'd always thought that it would be annoying, but it isn't in the least. The gestures on the trackpad are taking some getting used to - I'm used to slamming the cursor into the bottom right corner of the screen for Exposé, but now the four-finger swipes are slowly taking the place of that. I love the keyboard - it's the most solid, pleasantly clicky laptop keyboard I've used, and that's saying a lot. The screen is amazing as well - great, rich, vibrant colours, insanely bright backlight, it's just stunning. I'll just add that this is the first laptop that's ever made my PowerBook feel large in any way I'm in love! This should be a good laptop for me for years to come.