Apparently Audi has already put a dual clutch, dual input shaft servo operated gearbox into production in a street car.
For more info about the dual clutch, dual input shaft transmission you could do a web search about the Audi Direct Shift Gearbox (DSG)
Audi DSG
Dave Coleman also described operation of the DSG transmission in an article on page 12 of the April 2004 Sport Compact car magazine.
Good stuff... Eventually you won't need torque converter based automatics anymore...
