I don't know actually. I can imagine that it's for teh EU and Jp market. If I remember correct, they have Pat pend on the electronic one touch ON/OFF button aswell.
I will get a VFS2000 speedo tonight. I got it from the KO dist here in Sweden to see if the power and so will be matched if booster is installed with a KO speedo. I will test it on race track on Sunday.