I have only scanned the document, but I really like what I have read. They define what it means to be Evangelical and then they point to what the response of Evangelicals to the culture in many arenas should be.
Some key names for me as charter signatories:
Mark Bailey, President, Dallas Theological Seminary, Darrell Bock, Research Professor of New Testament, Dallas Theological Seminary; Ergun Caner, President, Liberty Theological Seminary/Author; Mark Batterson, Pastor of National Community Church in D.C.; Kay Arthur; Leighton Ford; Walter Kaiser, OT prof from Gordon-Conwell; Max Lucado; Rebecca Manley Pippert; Bob Roberts, Pastor of NorthWoods Church in Keller, TX.
Some pretty conservative names on that list. Correction from previous post: conflicting info on James Dobson. A spokesman says he has not seen the document nor been asked to sign. (I had seen an earlier report that said he would not sign. I will go with the CNN report for now.)