The Atlas toolkit and the Raspberry Pi
The Raspberry Pi is a small single-board computer developed for educational purpose, and emphasizing Python language.
As the Atlas toolkit is available in Python, you can use it on a Raspberry Pi, and also on similar devices, like the ODROID series. And it makes the use of this devices easier and more fun, especially when it comes to GPIO.
With the Atlas toolkit, it's very simple to write an program to control the GPIO, allowing to control them with tablet or a smartphone, as shown on following video:
To install both programs shown in this video, go to http://github.com/epeios-q37/atlas-python.