Recently, I received a review copy of Programming HTML5 Applications, written by Zachary Kessin, published by O'Reilly. This book was published about two years ago, so some of the information is already out-of-date. I learned a lot from the book, but a lot is missing. Soon, my review will be published by the Denver Visual Studio Users Group.
My demo is an HTML5 application that allows you to perform XSLT transformations on XML documents. It's just a proof-of-concept demo, so if you have a particular need for XSLT data processing, please get in touch and let me know.