There was a chilly marine layer hanging in the air above the Shoreline Amphitheater, but the danceable beats thumped on in spite of it. Rather than lumping together a lot of new features in an OS upgrade that will roll out slowly (or not at all) to certain devices, the company is sprinkling features throughout the year as updates to Google Photos or Gmail. Little tubs of snacks were distributed as a bribe to keep us in our seats