if there are no paddles, i believe its mainly the stick that will be used to shift and the tiptronic buttons are on the wheel as an alternative method.

it could also be due to the nature of dsg that it is not as shift intensive as the f1 tranny. its just a better and more efficient design in auto mode. virtually no shift lag.

most probably dsg will be introduced in the NA models first and in the turbo models when it can handle the torque of theses enines...