Let me go out on a limb and speculate that there's never going to be a Muslim Michael Newdow. At least, not for long.
I would remind Michael Newdow of what happened to Madelyn Murry O'Hare: She vanished into thin air without a trace, along with her daughter. Meanwhile, her non atheist, Christian son continues to live on providing good leadership to his community.
Of course there is: they are called CAIR. Just like Newdow, they want to eliminate Christianity and Judaism from all public venues.