These new dual clutch auto improve on the automatic trans by removing a lot of the power losses through no torque converter and some even no oil pump . You can let it auto or manual shift it, at least this articles seems to imply that.
Ford also implementing start/stop tech, were engine shuts down at stops, like waiting for red light .
DailyTech - Ford Powershift Gearbox Coming in 2010, Brings Clutchless Shifting