Yes and no, I did that in my most recent designs, but a touch grip is a skeuomorphic affordance -- which is fine as long as the control bar is always skeuomorp

Yes and no, I did that in my most recent designs, but a touch grip is a skeuomorphic affordance -- which is fine as long as the control bar is always skeuomorphic as well. As you move more into a flat design, the 3 bars as a grip makes less sense.