I've since read/heard a bit of scepticism from people who (at least appear to) have CNC experience, either through their job or home CNC conversions. They think the little fellah was groaning petty heavy on what was pretty light passes of the aluminum engine block. Another suggested that there isn't really hobby level 5-axis control software out there to support the full capability. IE. inferring he either has to write custom code or work with an existing vendor to provide this capability, or leave (hobbyists) to buy big boy $$ software. Does this sound right to you? My knowledge kind of ends with CAD, the CNC side is Greek to me. But it is cool. Maybe the first iterations mini-machines will be buggy like first 3D printers, but hopefully might invite similar ventures.
ps - when you say you 'looked at'... you mean the real thing or the video?