Well through Chris Sell's blog, http://www.sellsbrothers.com/news/showTopic.aspx?ixTopic=2122, the new edition is shipping. I liked the previous version, only real reference at the time I started WPF, together with the Petzold.
So I just placed an order for it, and at the same time ordered Nathan's and the other Chris book, so I can have a go at reading them all.
I'll do a comparison of all of them and report here. It's been done before but now that I've been working professionally for what seems like years but is in fact only a year (between the RTM and beta 2), I think I may see things differently.
It will also be fun to compare the first and the 2nd edition of Programming WPF :)
Question is, should I order the 3D Petzold? We'll see after I'm done with the rest.
Anyone wants to commission me to write "Writing controls for WPF: Put some sparkle in your cider!"?