Here, via Dave Lull. The comments, as one ought to expect, are not very good. Here as elsewhere, and to exaggerate a bit, the best arguments against an open combox are the contents of one.
I have read large chunks of Unger's new book and I hope to provide a critical response to some of it before too long. For now I refer the interested reader to a couple of recent Unger-related entries.
Peter Unger on Betrand Russell on the Value of Philosophy
Can one Copulate one's Way to Chastity? Notes on Wittgenstein and Unger