ehurtley said:
So apparently he expected a PowerBook 800 to have been released by 1996 or so.
That would be my guess too.
PowerBooks of that period were the 150, 180, 180c, Duo 250, Duo 270c, Duo 280, Duo 280c, 520, 520c, 540 and 540c. There wasn't a lot known about where the line was going and that Apple was going to adopt four digit model numbers for all PowerPC based products (in the PowerBook line this started with the 5300/5300c/5300cs/5300ce and Duo 2300c).
Thinking about it, the PowerBook line had jumped from the 200s to the 500s in a couple years so adding a few more years would put the model numbers in the 800s.
Plus the first of the PowerPC systems would have been coming out about the same time as the book, and those (the 6100/7100/8100) were the first to start using the four digit model numbers (and the first macs to include their clock speed in the model names... Power Macintosh 6100/60, Power Macintosh 7100/66, and Power Macintosh 8100/80).
Plus all that stuff changed when Jobs returned to power. He pushed for simple names... like Power Macintosh G3 (which covered the beige desktop, mini tower and blue & white models) and the PowerBook G3 (which covered the 3400c form factor, Wallstreet, Lombard and Pismo models).