Published at DZone with permission of G. Andrew Duthie, author and DZone MVB. (source)
Paul Thurrott, of Supersite for Windows fame, has finished the first edition of his Windows Phone 8 book, which he's making available for FREE download via his WindowsPhoneBook.com website.
Better still, you can influence future editions of the book by sharing your feedback. Just download the PDF, and drop Paul an email via his About Page (the email is in the about text...out of respect for his inbox, I won't reprint it directly here) and let him know about any issues you find.
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