The short shifter is available as an option for the xA in the Scion website, but the dealer says it does not exist for the xA (but it does for the xB). What the hell? Does B&M make one yet?

I was wondering the same thing last weekend. I did a forum search on "quickshifter" and found out about http://www.ptuning.com. Click on TWM Short Shifters and find the one for the xA. It's $122.

Why would the shifters even be different at all?