In order to help VB developers trying to learn about WPF, the VB team worked with a couple of VB experts to convert all samples appearing in Charles Petzold's book to VB. (Buy the book, follow along with the VB samples). Late January, they posted...
I was happy to hear that Matthew MacDonald release a VB specific version of his WPF book: Pro WPF in VB 2008 . I've updated http://robrelyea.com/wpf/books to include it.