9to5Mac

Here’s a rare look at a 17-inch PowerBook G4 prototype with a beautiful red logic board [Video]

The PowerBook G4 was the last notebook by Apple before the introduction of the MacBook and the transition from PowerPC chips to Intel ones. This computer was sold by Apple between 2001 and 2006.
AppleInsider

Apple Executive Sports 1 GHz PowerBook G4 Prototype

Apple Computer will not release a new model of their award winning PowerBook G4 until later this fall, but company executives were seen toying with prototypes of the new model just last week. The unit ...
MacRumors

Prototype Mac Pro and Intel PowerBook Spotted

Prototype Apple products have been known to appear on eBay. Late last year, a prototype MacBook Air was found by a member of our forum and in March a prototype iPhone was spotted. Now, it seems a ...
9to5Mac

PowerBook G4

The PowerBook G4 was the last notebook by Apple before the introduction of the MacBook and the transition from PowerPC chips to Intel ones. This computer was sold by Apple between 2001 and 2006.
Macworld

17-Inch PowerBook G4/1GHz

Apple’s Year of the Notebook started quite impressively, with the release of the 12-inch PowerBook, a compact laptop that combined extreme portability with the performance of the G4 processor.