Hi,
This is a question that more than one has made me, and the answer is very simple:
YES
But we must be careful that you can not enjoy the innovations offered by the sensor for the PC and also if you create a commercial application, you will need to distribute the application with the sensor for PC.
For everything else, development, test, etc; It is possible to use the sensor for Xbox 360.
Greetings @ Home
The Bruno
Download SDK http://www.microsoft.com/en-us/kinectforwindows/develop/overview.aspx
El Bruno 
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