Beerme,
I use the Tech-Mount stem nut mount already discussed. The nice folks at Cycle Gadgets misinformed me that it wouldn't work due to the change from 32mm to 36mm stem nuts on the '06. The Tech-Mount folks correctly told me that altho' the head size changed, the threaded size did not. Plan on using a 36mm socket.
The RAM bracket (the black plastic one for the SPIII) does not fit the base atop the arm on stem nut mount. I transplanted the arm and base from Tech-Mount Handlebar Mount #30997C (it was just laying around) onto the stem nut and it's all good now... except for that pesky chrome atop the aluminum stem nut.