I've used ReconstructMe (FREE) and it's quite amazing! It was fairly slow on my netbook (dual core amd, 4gb, 1 ghz, ram I think) but it did run in regular mode. I think it crashed with High Quality mode. It runs flawless and much faster on my i7 laptop beast. It captures a 1m cube space. I think just straight exporting will save either a .ply file or .stl (I forget). One great thing I discovered is you can add .obj to your filename and then it automatically converts to .obj! Fantastic! There are 2 drawbacks I found with ReconstructMe: It is licensed for noncommercial use and it can't capture color.
Another FREE program that I found more useful is BrekelKinect (http://brekel.com/
). This program can also 'scan' an object and export an .obj, complete with full color and uvs and can be used for commercial purposes. But it only takes snapshots; doesn't fill in areas as you move the kinect around like ReconstructMe. So to circumvent that, I took multiple snapshots and aligned them in Softimage.
Here's a really lowres retopo of my friend:
If you are interested in purchasing a Kinect, I think I would recommend the original xbox360 one rather than Kinect for Windows. Kinect for Windows includes a zoom feature which might be benefitial for working at a desk, but there are many more programs out there that utilize the opensource kinect drivers. I read that Kinect for Windows cannot use the opensource drivers.
Excited to tryout FaceShift.
I'll report back later with my findings.