Sadly no one's figured out how to adapt the DK1 mount to fit neatly on a DK2. I have a very nice holder printed off of Thingiverse, but it's a little tricky figuring out how exactly to get it onto the Oculus.

I really hope Oculus actually add some mounting threads or something to the front of the visor for this type of thing in the CV1.

Our VR Developer Mount is compatible with both DK1 and DK2. Additionally, we've made the files available on Thingiverse if you want to DIY our version: http://www.thingiverse.com/thing:445866

Because of the IR marker LEDs I'd be hesitant to strap a leap on there considering it's dumping IR light out of it to illuminate your hands.

The sync cable should mitigate that. I haven't heard of people having problems when they try it.