AWS IoT Core now supports direct messaging for point-to-point communication

AWS IoT Core now supports the ability to send point-to-point messages to any connected device, providing better visibility into message delivery and lower messaging cost. AWS IoT Core is a fully managed service that securely connects IoT devices to the AWS cloud, and enables bi-directional messaging between IoT devices and cloud services. Previously, sending messages to a single IoT device required publishing to a topic subscribed by the device, with no built-in way to confirm delivery from the receiving device.