I've been pondering some type of spring loaded affair, that aligns the foot along the sidestand axis when stowed, but that folds into position when the sidestand is extended; the foot's 'heel' would catch against the ground, causing it to fold into position.
Essentially, this would be secured to the sidestand by a 'U' bolt or two, on the outboard side, with the majority of the surface area on the outboard side as well to allow for clearances.
I haven't played with this idea yet, however.