I find it exciting that there are a number of commercially available products that address the same issue as this project, and there are single chips that address the electrical side of this project, but people still find it interesting.

I still find it interesting as well.  While the chips that make this projet simpler are fantastic, I continue to find something lacking with the companies that address the processing issue. 

I have run into the same issues I have had with this project in a number of other projects, and I am working towards a solution, but with the development of other software and hardware projects this has only just become within grasp (at least as far as I can tell).  

Hopefully there is an update in the not too distant future.