I've seen several reviews of Richard Dawkins' latest
infantile rant book The God Delusion, most of them by his fellow atheists. Some of them have tried to say something positive but have gone on to distance themselves from some of his rhetoric, some of his arguments, and some of his views. Others have been more critical. Most of what I've seen hasn't been overwhelmingly positive. Even some of the more favorable ones register what seem to me the kind of criticism I find myself writing on first-year philosophy papers, not the sort of thing you should expect of a serious academic, even one so far outside his field as Dawkins is when it comes to religion.
For examples, see reviews by Jim Holt in the New York Times, philosopher Thomas Nagel in The New Republic (unfortunately subscription only), Marilynne Robinson in Harper's Magazine, Terry Eagleton in the London Review of Books, Kenan Malik in the Telegraph, and Gregg Easterbrook at Beliefnet. While I'm at it, there's also my post in response to one of his points and Brandon's post criticizing him on several other issues.