Adam Cleveland over at Pomomusings posted about a dinner at Princeton. The dinner was hosted by the History Department, which invited Muslims to break their Ramadan fast with a group of Christians in order to sponsor understanding and "unity", apparently. The event included accompanying the Muslims to their evening prayers. It wasn't clear whether the Christian participants actually prayed with the Muslims at that time, but Adam asks this question: "What would happen if Christians and Muslims met together in fellowship, in community, in unity, praying to the same God, coming from the same tradition, from the same faith of Abraham?"
My $.02 - we're not praying to the same God and no matter what they claim, Muslims are not of the Abrahamic tradition. To accede that point, to suggest that they are legitimate heirs of Abraham is to deny historical reality and worse, it is essentially denying Jesus' unique, salvific and divine role. If this kind of thing represents Emergent thinking, to me, its yet another nail in its coffin.