Brian McLaren sent a good email out yesterday, recommending a read of Wendell Berry's article, In Distrust of Movements and giving some good thoughts:
"There won't be postmodern churches (or better put, churches that deeply engage with postmodern cultures) until there are Christian theologies that are not written/spoken in modern-ese. Post-modern-ese THEOLOGIES may have been conceived; they may be in the second week of prenatal development; but as far as I can tell, none have yet been born. These things take time, and premature births are risky. It's better to let the womb of the Spirit take proper time to give birth what must come in the fullness of time."