Thanks for this blast from the past. I bought the book in 1997 as a sophomore student at university. My favorite book at the time. Leafing through the PDF after all these years I came across some gems I hadn't appreciated back then:

On page 161 the author mentions in passing that Eric Schmidt had been working on BerkNet. THE Eric Schmidt. The Google Eric Schmidt.

Earlier the book mentions that Bill Joy was able to hire a developer with money they got from DARPA. That developer was Michael Toy and later Sam Leffler. There's a movie called Code Rush about the open-sourcing of Netscape's source code in 1998 (which begat Mozilla and Firefox) and Michael Toy was the project lead for the open source effort back then. Sam Leffler later developed TIFF.