Google kicked off its annual I/O developers conference yesterday with its customary keynote. The search giant used the nearly 4-hour long affair to announce new software and services, including Spotify-like Play Music All Access and Hangouts messaging.
Additionally, Google also took the opportunity yesterday to update some of its apps. It gave Gmail some new action buttons, showed off a preview of its upcoming Maps update, and released a new version of its Play Books app for both iOS and Android...