I have a v600 that'll work with AT&T for sale. New in box if you are interested And yes AT&T is slow on some things but replacements are quick. As for the sim card solution just go to a local AT&T store and try to explain to them that there replacement didn't have one. way better than waiting for one through mail. I also have 2 sim cards laying around if they don't send ya one :exnbp: