"As one door closes, another opens..."
It's purely speculative, but it's definitely on the cards. Think about it -
Location, location, location.
The number 1 rule in Real Estate (no - I'm not an estate agent... lol!). But people do want to reclaim their desks. No consumer wants big and bulky anymore - just look at how successful the iMac was/is.
Jaguar offers handwriting recognition.
What better way to utilise the old Newton technology integrated into the new OS. And writing onto a screen that contains text and images would feel far more natural than writing on a small pad.
People want "sexy".
Apple products are attractive to look at, especially compared to the beige boxes that still grace the PC shelves. But now, the others are catching up - either by using Apple's design standards, or by inventing their own wacky interpretations of the future. That's why a one-piece screen/G4 motherboard/SuperDrive configuration would be totally unbeatable. And a complete show-stopper.
"Mini-me"...
All of this talk of a PDA may be closer to the truth than you think. OK - so what if the idea of a one-piece LCD iMac with a SuperDrive that looks in it's entirety no bigger than an existing 17" monitor may be correct? Imagine a small colour LCD PDA, virtually identical in design to it's bigger sibling, running a cut-down version of X - complete with handwriting technology handed down from the Newton. With it, you can take your work anywhere you want with complete confidence of compatibility - because it fits with it's older brother like a glove, via the proven FireWire link and it's 10Gb hard drive.
Maybe they are just pipe dreams...
...but - what if?

(Coming to a town near you - soon)