Next March or April the US Army will have some of these robots operating in Iraq:

It is a black, 2-foot-six-inch robot rolling on twin treads, with an M249 machine gun cradled in its mechanical grip. Basically it is the same Talon robot they currently use for bomb-disposal duties.

Four cameras and a pair of night-vision binoculars allow the robot to operate at all times of the day. It has a range of about a half-mile in urban areas, more in the open desert. And with the ability to carry four 66-mm rockets or six 40-mm grenades, as well as an M240 or M249 machine gun

Source: Wired