Governments have been exploring digital driver's licenses for a while, but there are quite a few flaws with existing approaches. You usually have to rely on a proprietary app, sometimes with uncertain security... and what happens if your phone is low on battery when you need to flash your credentials? Google might have a solution. XDA has discovered that Google is working on an IdentityCredential framework that would securely store and display digital IDs, including driver's licenses. It could also display your ID even if there isn't enough power to start Android -- you'd just need the power for a secure chip and a "low-power communication channel."