The xbox kinect has slightly different hardware and firmware and won't work with the k4w SDK and runtime that's used for Touch's support of the kinect.
I bought the new one and it's really great. I will sell off my old xbox one while there are Mac and linux folk still happy to get one secondhand.
If you know students or teachers in the USA, they can get the k4w unit half price.
however, there are a few ways to get the xbox one going with Touch.
1. If you have touch FTE commecrcial or Pro (needed for the shared-memory capability), there is some rough software that will feed the kinect's depth image in via shared memory, just search the touch forums to find it.
2. to just get the skeleton data via OSC messages, look for something called OSCkeleton via google.
3. if you hunt around for alternative windows drivers for the kinect, there are example applications that display the camera and depth map on the screen. you can use TouchDesigner's screengrab TOP to bring it into Touch as long as you have it open in a window somewhere. It's fugly but it works.
Generally, I reckon it's worth saving time to just pony up the cash and buy the new one, especially if you are or know a student or teacher in the USA.