AT&T announed today that it will soon unveil the Dell Aero, an Android-based smartphone. The smartphone is Dell's first smartphone available in the U.S. The phone's user interface was developed by Dell and AT&T. A promotional page here on AT&T's website lists some of the specs. They include a 5-megapixel camera, onboard GPS system, 3.5-inch nHD touchscreen display, social networking apps and a PC-like web browsing experience with technology called Flash Lite. AT&T has not said when Dell Aero will be available.