What a frustrating book! Boyarin ignores other biblical scholars' work and strikes out on his own. It's not as though the topic hasn't been examined by others....of whom Boyarin seems unaware. Note the endorsements of Boyarin's work don't come from respected scholars in the field (whether Jewish, Christian, or atheist). If you are looking for "the latest" news on the interaction between Judaism and the emerging Christian community, please see Peter Schäfer's 2012 book The Jewish Jesus: How Judaism and Christianity Shaped Each Other, published by Princeton University Press. This book is a much more difficult read, true, but a far better one, reflecting the wealth of knowledge of the scholarly community, and the difficult debates occurring among those who read and respect each other's work.