iOS: Sunrise, our favourite calendar app for iOS gets an update today. It now includes a Notification Center widget, and Google Task and Eventbrite integration.
The Google Task and Eventbrite integration just adds to Sunrise's already impressive list of service integration, while the widget brings it in line with other calendars on iOS 8. The widget includes all your upcoming events for the day, colour-coded based on the calendar they belong to. If you've invited anyone to the event, they get a little profile picture in the widget as well.
Sunrise (free) [iTunes App Store]