Also during the press release of Project Escher they stated that they are not intending to develop hardware solutions. They are only interested in developing the software side and as seen the solution is so far only being used by closed sourced commercial printer companies such as Titan.
The Duet can do this better in my opinion and make it more accessible to the masses. I wish I had the skills you have because i would be all over developing such a solution. But the best I can hope for is that I can help with testing the Duet.