I worked on these shoes (I am a co-founder of the studio yesyesno / yesyesno.com) and happy to answer any questions. It was really a quick prototype, and we are in the process of open sourcing all the schematics and code around the project.

our repo (which will get cleaned up / readme shortly) is here: https://github.com/jmsaavedra/shoes

Now, if we could get these connected to Google Glass…