The bland aesthetic
Firstly - the G4 Powerbook is a fantastic piece of design - I'm using one right now to write this message & I love it. It's not flashy or all bright colours - it's lean, minimal & very stylish. I've yet to see any other portable match it in looks (Sharp has made a noble attempt recently, but they haven't got close).
BUT! The G4 Powerbook is a bright spot in anotherwise dull bunch of designs we've had from Apple of late. The Cube looked like a plastic tissue dispenser, the iPod looks like a stethascope, the iBook looks plasticky and cheap. They're all white and dull - like intruments from a mental assylum where the patients must not be overstimulated.
The clunky, rectangluar, angular form of the iPod does a dis-service to the great thinking behind the device.
I think it's critical Apple brings out an updated iMac, and it needs to be a little more than a fat silver LCD monitor!
On the subject of the way designers set up their workspace - from my experience they have only very limited understanding of the technology they're using, and frequently refer to their monitor as their "Mac" and their Mac as their "Hard Drive!"