Delivering push notifications to millions of devices with Windows Azure Notification Hubs

Push notifications are a vital component of connected apps. They allow back-end services to send frequent and timely updates to specific users and devices that can then appear as tile updates, toast notifications, badge updates, and more. (See the three-part series, Alive with Activity for more background.) As such, push notifications are perhaps the most powerful customer engagement mechanism available to app developers across phones, tablets, and PCs.