At its 2015 Google I/O keynote, Google focused mostly on optimizing Android — but that's actually a pretty big project. A lot of the updates involved reducing friction: there were updates to Android designed to make moving between apps and the web smoother, updates to Android Wear designed to make it easier to glean information from watch faces at a glance, and a new photo app that will organize all your pictures and back them up for free.

There are also some new, potentially interesting features for the existing apps. Google Now will start to anticipate your needs wherever you are on your phone. If you’re in a region with poor connectivity, Chrome and Maps will be capable of more, including giving directions while offline. As for hardware, there’s a new Google Cardboard — and an educational field trip initiative — and a VR camera system that will be sold by GoPro, but the plans for which will be made available this summer for anyone to make their own.