Raising the dead on a dead thread about ugly PPC design:
Sorry, but hard, hard disagree on dissing the clamshell iBook — though I was never terribly fond of blueberry or graphite.
Had it not been for all the misogynist-inflected machismo at the time which winced and threw shade at the clamshell's lines as """feminine""" (its form and function are, plainly put, extremely smart, even if the final product was fairly heavy overall), it's clear from inspecting its logic board that there were were provisional plans for a Rev D. series, with somewhere between 128 and 256mb onboard memory and up to a 600MHz G3 PPC750cx processor (which would show up in the summer 2001 iMacs).
I gather these steady refinements would have been better for product reputation in the near-term, without all the problems which besieged the ice/dual-USB replacement, but it would have detracted from the implementation of a rectangular box (which would probably have come to pass regardless). Had a Rev D. clamshell come to fruition, I reckon there may have been a "Snow" version (with silicone-warm-white-on-polycarbonate-white); the Indigo version may have continued on with an SE; and a third, unique hue (another Apple online store exclusive) which probably never saw light of day with any Apple product (I daresay something like "Canary" or "Lemon").
Definitely the most difficult for me to look at/easiest to look away from:
1) the Quicksilver and MDD G4s*,
2) the eMac,
3) the Flower Power/Blue Dalmatian iMac G3s,
4) (this one may unsettle its fans) the first iMac G4s (which reminded me of something from the film Short Circuit, one of the A New Hope droids inside the jawa hauler, or maybe a Microsoft Clippy companion), and
5) the all-in-one G3 (wat)
* My first computer was the Yikes! G4/350. What it lacked in performance and internals, it more than made up in design aesthetics. By July 2001, Apple chose to toss it. Welp. Around 1999–2000, there was a tweaked image of a G4 tower floating about which hinted there might have been a limited edition run of Grape G4s in the works, which would have been really nifty.