Oliver Morley, CEO of the DVLA (who handle U.K. driving licences) tweets a prototype of a driving licence using iOS’s Wallet app.
It’s now possible since the U.K. ditched the paper counterpart in June 2015. Oliver provides no timelines yet but states it’s an add-on to your physical photocard licence and that security is their focus. I’m curious to see how they get around fraud with this.