hmmm , i can't see it catching on .
Afterall there are fundamental differences between the Muslim faith and christianity - not least Muslims do not beleive that Jesus is the son of god .
Also there is a big difference between a prayer room at an airport , which does not belong to any one faith ; and a dedicated christian church building
Yes i can see them providing non religous services to the community of whatever faith , but not having a church service , with christians and muslims worshipping , side by side .