Raspberry Pi Motion Sensor with Realtime Web Alerts Tutorial

>Thanks to its open software and hardware designs, the Raspberry Pi is well-suited to demonstrating the core tenants of the IoT. On a Pi, a tinkerer has full control. They can connect actuators and sensors, process data, and send information over a WiFi connection.

Using a 1ghz, 512mb RAM + WiFi at a price point of ~$50 USD does not constitute "core tenants of the IoT", irrespective of how fluid the term "IoT" is right now.

For a little more than cost of this article they could have deployed a targeted giveaway program with the ESP or (even more friendly) ElectricImp modules preconfigured with their service.