Had my copy for a few days now and have read through it fairly thoroughly. It's a great book and definatly gets a thumbs up from me. I'm aiming to get the review done this weekend.
In other news, Mozilla simply rocks if you are doing anything related to Javascript. The Javascript console lets you know where errors are (compared to IE which is fucking useless) and importantly to me, the Javascript debugger lets you browse files that have been included in a <script> tag, even if they are dynamically generated.
I've also come to the conclusion that IE on the Mac bites it. It seems to support a random subset of Javscript and things that work on IE 5+/NS 6+/Mozilla fail (often silently).