Alan Jacobs offers trenchant comments on the new "Evangelical Manifesto," seeing it weak and colorless and, as it stands, of questionable value. He writes as an insider, not an outsider. He is an evangelical himself, a professor of English at Wheaton College, Illinois.
The Associated Press covered the announcement here. Warren Davis sees it representing a power struggle amongst evangelicals. So many of the "Christian Right" were neither consulted nor asked to initially sign on. That would include Dr. James Dobson and Dr. Richard Land, to name but two.
Other commentators are more positive. I personally have not had time to study the document and expect to blog further in due course.