Hi Mark, yes, i too have just read that on SOM's website. I know you can get right hand ones, i think though that they are custom made to order.
however, i am in engineering, so i might spend some time this weekend in the workshop and turn something up to suit, as there is a 6mm cap screw in the end of the SOM handle, thus allowing the left handed thread section to be easily removed.
i have just contacted some mates currently in Japan at the trade show, so we'll see if they make a 'break through'.
cheers