Unfortunately Microsoft has deigned to give us the reason behind this move, and all they had to say was that “Customers who are interested in purchasing a Windows Phone Nokia Lumia 900 should stay tuned to the Microsoft Store Facebook Page for store offers in the coming months.”
The device is expected to see a launch on AT&T’s network but unfortunately no specific launch date was given. So if you’ve missed the opportunity to place your pre-order via Microsoft’s retail outlet, not to worry as we’re sure AT&T will give you the opportunity to pre-order it from them when the device is ready to be released!