Maybe you remember some months ago Microsoft Research published information about KinectFusion, an application that allowed to incrementally digitize a 3D scene with the kinect. Until now they haven’t made this available to the public. Now some engineers have been able to reproduce the functionality and made it available for non commercial use.
ReconstructMe works on top of the OpenNI Framework and thus can also use the Asus Xtion sensor. The Application makes use of the GPU for generating the 3D data. If you don’t have a GPU powerful enough you can still process recorded data in just not in realtime then. The generated 3D scene can be exported in the STL and OBJ format.