No offense, but you're starting to sound like one of those dorks who demanded that we celebrate the millenium on 12/31/00.
Islam seems to fly in the complete opposite direction of Christianity.."Love thy neighbor, forgiveness..." does not exist in Islam but seems to exist in the exact opposite. "Kill those who get in your way, punish those who screw up."
Plus all Muslims follow this thing called the six articles of faith. Look through Islam you will find many things based on the number 6. Also Mohammed is said by tradition to have been born in the year 570 A.D. so it is quite feasible he could have been born in the year 600.