In addition to the Nokia Lumia 900, AT&T on Monday announced the upcoming availability of another sleek Windows Phone with 4G LTE connectivity. While initially expected to launch in mid-March, HTC’s Titan II will hit store shelves on April 8th for $199.99 on contract. The sequel to the original HTC Titan features a 4.7-inch Super LCD display, a 16-megapixel camera with a dual-LED flash, 4G lTE connectivity and Microsoft’s Windows Phone 7.5 operating system. BGR took a hands-on look at the Titan II during the Consumer Electronics Show this past January, and while it offers clear advantages over the original Titan — namely LTE connectivity and the new camera — we preferred the unibody aluminum case on the original model to the sequel’s plastic exterior.