Want to make sure everyone at your next shindig has a copy of the itinerary? You'll probably want to snag the updated version of Google Calendar for Android, then. The refreshed app lets you associate Google Drive files with events -- you don't have to send that big presentation in a separate message to make sure everyone gets it. There are a few other welcome (and arguably overdue) upgrades in store, such as a 7-day week view, pinch-to-zoom navigation and the option of importing the .ICS calendar files that you frequently get through email. The Calendar upgrade might take a few days to hit your device, but it should be worthwhile if you're determined to organize your life.