For those of you who missed it, Windows 10 IoT Core is a new Windows for embedded devices. It lets you write universal Windows apps for your internet of things devices. What can you do with it? You can build a air hockey robot with it. The system comprises a universal windows app, touchscreen, motor controllers, 3D printed parts, object tracking camera, emergency stop button, and other parts.
The latest release offers improved support for Python and Node.js. GPIO performance on the Raspberry Pi 2 has also been improved. More information is available here.