Simon - that's an interesting article - thanks for posting it here. I hope to shortly post an interesting YouTube shortly about my BIG project - which I hope people also find fascinating.
I know of the 123D Catch by Autodesk - although I have really played with it yet. Also, will admit - I'm REALLY Busy at the moment on a BIG project for my Bot (more on that in another posting) - so I only Scanned your article. But, its good to know abuot he drawbacks with the Catch program. Will read your article further shortly...
Thanks again,
-K-