Please, do tell. Is there a whitepaper or blog post somewhere about how this technology works? Also, do you suppose you could get better results from a consumer depth-camera, such as the Kinect?
Yes, the Kinect would probably be more accurate (it was one of our original ideas), but it wouldn't have made a very good business. No one would have been able to easily use it in his home (not many people own a Kinect, 3rd party apps for xbox aren't big and when I have seen a Kinect, it doesn't capture your whole body).
We found that our accuracy is more than sufficient for shirts (we've shipped a bunch already and gotten overwhelmingly positive feedback). Accuracy is just 1 aspect of a great looking shirt though; style is also really important, and we've spent a long time refining that as well.