Does anyone know release dates for Sprints Samsung F700 or M800?

I want a new phone, but i would hate to buy one and then they release a really nice phone. I know the F700 was released in Europe, but I wanted to know if there was any news about it in the U.S. Please help me out.. I need a new phone.. And, unfortunately I have Sprint.. Their selection sucks.. I am desperate.. Well, let me just say that I have the upstage now.. So, you know my desperation..!!!