Earlier we reported that AT&T's version of the HTC One would be going on pre-sale sometime this week, and the GSM carrier has finally revealed its official plans: the flagship HTC device will be ready for pre-order online starting April 4th. Both the 32GB and 64GB models, which will be $200 and $300 respectively, will hit retail store shelves on April 19th. The carrier will also offer a free Media Link HD as part of the pre-sale bundle to sweeten the deal. DevelopingFiled under: Cellphones, Wireless,