First of all, hats off to KP for his switch-hitting. I cannot even write legibly with my left hand, so I look at his skill in amazement. Innovations like these are exciting and spikes viewer interest.
I understand that this poses some questions on rules. To even it out for the bowlers why not allow the bowlers to switch hands they bowl? Why not change the wide rule so that if someone switch-hits, the wide is beyond the white line on both sides. Expand the lbw rule, so that the switch hitter can be given out if the ball is likely to hit his stumps regardless of whether it pitches outside leg or off stump?
Rather than making this an illegal shot, I would hope that ICC expands its rules to allow this (so that only the highly skilled and risk taking players will attempt this)... What do you think?