While this block hasn’t yet been released, it is a great preview of what’s to come when badges can be pulled directly into Moodle and displayed or can be customized by and displayed on a specific site.  Iain Checkland the developer of LIONeL (a custom distribution of Moodle in Hong Kong) has created the unreleased block and showcased the various applications on his site: http://drcheckers.wordpress.com/2013/01/21/badger-simple-badge-block/.

Looks very cool, and if this is anything like what Totara LMS is aiming for with the Open Badges for Moodle project I think things are moving in the right direction.  Check out more at http://drcheckers.wordpress.com/2013/01/21/badger-simple-badge-block/.