Want to get started in robotics? The good news is that you may already have the most important part of the robot in the palm of your hand. Intel researchers have published a guide on how to build a robot using your smart phone for a brain. Today's mobile phones pack a surprising amount of processing power, and with just a few robotics parts you can now build a robotic rover with minimal AI capabilities such as person following and collision avoidance. This is definitely one of the best ways to get into robotics. Check out the Intel OpenBot project for more information.