HTC prototype of an LTE phone for AT&T breaks cover
The phone resembled the HTC Inspire 4G, which in its turn is an AT&T rehash of the HTC Desire HD, meaning that the new Sense UI will be slapped on HTC's LTE phone as well. That resemblance means a 4.3" screen, but the person that handled it, says it seems a bit thicker than the 3G-only slabs.
What's more interesting, though, is that it was actually hooked up to an LTE stream, and tethered to a laptop, beaming 50Mbits, close to the theoretical 60Mbits maximum of this generation standard. The streaming was taking place in an enclosed and controlled environment, of course - on an overcrowded commercial network you'd get a tenth of that at times, but the sheer fact that an HTC LTE phone is in a prototype stage for AT&T, warms our hearts.