How exactly would the bike roll away ? The standard (Kickstand) is essentially your brake . When the Bike is canted at an angle the disc brakes would rub if you attempted pushing it leaned over that far . I would also guess with brakes locked you'd prematurely wear out the lines that carry fluid . The idea of a standard is to hold the bike up. But it also serves as a brake of sorts . The bike would fall over before it rolled away. I honestly would never even think of my bike rolling away no matter how steep of an incline I parked it on.
I looked at the Click-Stand Site . Nice idea . But how is that more portable then a stand mounted on . You have to carry the thing . I don't get the purpose over a regular kick stand . Looks like it can be used as a clothes line also