I just Googled Parallax "Physical Computing" and did not find what you referenced - can you provide a link ?
However, it is extremely likely that everything is covered - I just added many of the available Statements to:
http://www.rhombus-tek.com/BC4Arduino.html
at the bottom of the page.
Sorry I meant this book as it's widely recommended for people starting in the microcontroller/physical computing arena: http://www.amazon.com/Physical-Computing-Sensing-Controlling-Computers/dp/159200346X
As I understand it the PBasic examples are targetting the Basic Stamp, but I might be wrong as I don't own one. Sample pages are available on Google Books: e.g. http://books.google.com/books?id=6JRcqhVUszEC&printsec=frontcover&sig=IwzAFztiEncCES8Xa47mQWlVgmI#PPA94,M1
A more general question to everyone - are there any Arduino books yet (apart from "Making Things Talk" which I'm aware of)?
Andrew