Credenda Agenda has written a critique of Brian McLaren's A New Kind of Christian. They have a lot to say to us Reformed people. We need to listen to this movement and hold onto that which is good.
For all his flaws, though, let's face it—we have guys like McLaren leading a sizeable heap of Christians because we Reformed types consider the Great Commission something of a spectator sport. We consider intramural arguments among postmillenialists more important than feeding the poor in Africa. We haven't the slightest idea how to get our finely-tuned engine into a car, let alone out on the road. We take our talents, bury them, and call our riskless life "good stewardship." The Kingdom of God is much more than the baptistic evangelical altar call. It is much more than the simpering religious bricolage of Emergent. It is also much more than our own myopic infighting. We know for a fact that the Kingdom, the church, is a conquering, holy nation of kings and priests living in the world that God has promised to liberate and has liberated in Jesus. We know and assent to this—and without needing postmodernism to tell us so—but we won't feel it in our bones until we go out to the highways to bring in the poor and the lame and the maimed and the blind.