You’ll be surprised to learn that Twitter can even give instructions to a robot!
The idea: users type specific commands on Twitter to the @n900niko account, for example of a computer, which are sent to a hacked Nokia N900 which retransmits the instructions to the LEGO Mindstorms robot.
Nokia can
This is a companion discussion topic for the original entry at https://community.robotshop.com/blog/show/niko-the-lego-robot-controlled-by-twitter