Nice try, Mr. President, but by now anyone with half a clue knows that it really means "submission."
And even if it did mean what you say it does, "peace" in the Islamic sense has an entirely different meaning that the one we infidels understand in that it is the peace that is promised once the world cries "uncle" (i.e. submits) to Islam.
How considerate of Obama to once again use his office to conduct pro bono P.R. for the one true faith--the one faith he truly loves. ;)