Given the project is currently at quite an advanced stage, I know it must be quite difficult for people discovering Mooltipass to quickly understand what this is all about. So where to begin?

For a quick description of the project, have a look at the official github repository: https://github.com/limpkin/mooltipass

For the first Hackaday post explaining the project, have a look there: http://hackaday.com/2013/12/06/developed-on-hackaday-lets-build-some-hardware/

Hackaday post explaining the main electronic components: http://hackaday.com/2013/12/18/developed-on-hackaday-first-version-of-the-hardware/

Hackaday post containing the first picture of a functioning prototype: http://hackaday.com/2014/01/12/developed-on-hackaday-we-have-pixels/

Hackaday post showing the design we're currently working on: http://hackaday.com/2014/02/11/developed-on-hackaday-the-current-project-state/

If you have any question, you're welcome to leave a comment here!