Not me - too much hassle - But I don't know why I'd want to, other than for an occassional thourough cleaning (scrub the plate down seperately etc..)
For air travel I put the assembled rig in the bottom of my suitcase, then pack clothes between the plate and wing so as to prevent the plate from coming into contact with the wing and pinching it - OR I fold the wing away from the plate, so there is none hanging over it that could get pinched. I've considered taking it all apart, but so far not done so for travel - Taking my wing off the plate takes about 3-5 minutes because I use the camband slots and have screws bolting the plate and wing together... so I just leave them together...
Aloha, Tim