Can I say I'm just SO GLAD I didn't wait it out, and instead gave in an bought a Powerbook G4 12" 1.5Ghz model in December instead of waiting for Macworld? It's exactly the computer I wanted. It's super-portable, metal, durable, and runs Photoshop nearly 3 times as fast as my friend's fully decked out Macbook Pro (although he only has 1GB vs. my maxed-out 1.25GB). I do all my intensive work on my G5 anyway, but have been impressed with the fact that I've been able to output pure HD resolution (via mini-DVI to HDMI cable) to my new Sony HD TV and demo those new Quicktime HD trailers in full 720P resolution glory WITHOUT dropping frames, despite Apple's claim that you'd need at least a G5. Yes, my REV D (or did it end at a C?) Powerbook G4 12" 1.5 is quite a powerful little sucker.
Will I replace it in a year once Apple gets past the native software issues and the early adoper bug phase? Sure..... but I'm just so glad I didn't wait only to be left with a heavier (and much buggier) laptop. This little guy is by far the finest, most glitch-free laptop I have ever owned. I bow to the REV Ds.