Hello World from Arduino. That is this Blink example.
Year: 2012
Test Driving
Controlled via the WiFi connection. The robot runs an http server. The phone connected to the server can send commands to the robot.
Arduino-based mobile robot platform
I am building an Arduino-based mobile robot platform controlled by smartphones. 
Arduino books
Get my feet wet with Arduino. I like the tiny book, Programming Arduino, Getting Started with Sketches. This book is well organized and pretty much informative. Arduino Cookbook is a good reference book that covers a lot of specific topics. Two project driven books also worth to read and obviously to do.
