Updated the schematic over the weekend to clean up the wiring and group signals, sheets, etc. more intelligently.  A new version of the source files and a PDF can be found on the git repository.  A direct link to download the PDF can be found here.   I will also be going thru and adding better labels on schematic to make everything more readable and finally completing the final bits of IO routing and the power supply.  All should be wrapped up this week (hopefully).

As always, comments, suggestions, noted errors, etc. are all welcome.  This is still very much a work in progress but getting close.  Should also note that I ordered prototype quantities and anyone interested in testing should let me know via the comments of pm me.