Wow, 4th Edition's comming.. (from Amazon)

[jpaone]

As noted in

Existing of a book

I assume, based on the post below https://forums.bignerdranch.com/t/viewmodel-oncleared-not-being-run-as-shown-in-figure-4-7/16761?u=jpaone that people are looking at the online edition available at http://learning.oreilly.com/

an eBook version does exist at this moment so discussion can properly move to the 4th edition forum at this point.