Advanced users: we're providing tools to create truly-customized gauges. We are releasing our rendering API, a gauge-viewing app, and example gauge files to aid in creation of your personalized gauges. Now you can make gauges that look and behave exactly as you want them. View this post for details.
Everyone: We're also providing a way for users to import custom gauges/templates into VIRB Edit. We've created this forum for users to publish their creations and for users to download them.
here's a little preview of the things you can get up to with custom overlays. I recommend having a look.