Images of what is purportedly one of AT&T’s upcoming 4G LTE Windows Phones, the HTC Radiant, have been leaked by Pocketnow. We first heard about the HTC Radiant in late December when a rumor suggested that AT&T may unveil it, the Samsung Mendel and the Nokia Ace during the Consumer Electronics Show as its first 4G LTE Windows Phones. The device is expected to look very similar to the HTC Titan, save for a few cosmetic tweaks such as a larger front-facing camera sensor and a few moved buttons. BGR exclusively reported last month that AT&T will unveil a Titan-like 4G Windows Phone from HTC at CES 2012, and it currently scheduled to launch next month.