I see that http://code.ettus.com/redmine/ettus/projects/public/documents
has the PDFs, but are the PCB/PADS files still around for any of these
boards? If the answer is no, then is “open source hardware” becoming
“open, but we don’t want to make it too easy since we make money on
these”. If yes, then kindly skip over that last part 
-Brett