I have read McDermott's God's Rivals: Why Has God Allowed Different Religions? and Millet's A Different Jesus? The Christ of the Latter Day Saints. I was extremely disappointed with both of them. Therefore, it is with some hesitancy that I will take up their combined dialogue and read it when it comes out. At the same time, I recognize this work's importance in contemporary evangelical and Mormon discussion, so it will be important to critically engage.
In any case, here is the book's description:
Some have predicted that Mormonism will be the third-largest faith in America by the middle of the twenty-first century, yet confusion abounds regarding what Mormons actually believe, especially about Jesus. Do Mormon beliefs and evangelical Christian beliefs differ significantly, or are their views similar enough to be considered the same faith? Can Mormon and evangelical believers learn from one another and even work together?
In Claiming Christ, respected scholars Gerald McDermott, an evangelical, and Robert Millet, a Mormon, engage in a back-and-forth exchange comparing evangelical and Mormon views on one of the most significant issues dividing and uniting the two faiths: the identity of Jesus. Throughout the conversation they exhibit genuine respect for one another, seeking to clear up misconceptions and find common ground even as they dig deeply into each faith's texts and traditions. The result is a fair, thoroughly researched analysis that will be a valuable resource for pastors, students in college and seminary apologetics courses, and lay Mormon and evangelical believers seeking to understand the differences and similarities in how Mormons and evangelicals view Jesus.
You can also read the introduction online (in PDF format).