Python is popular programming language used in Raspberry Pi. It is easy, intuitive and well documented. With Raspberry Pi hardware you can access physical pins and do lots of crazy things. Anyway like any new thing you need to learn it. TO make thing much easier, jechavarria introduced Rpi board which is dedicated for learning Python on Raspberry Pi.
Rpi board has four 10mm diffused LEDs – each different color. Each is controlled through Mosfet transistor key. Then there are couple push buttons that are lined with LEDs and in the middle there is a buzzer which is also driven through transistor key. On top of it Rpi board carries 2×16 LCD. Additionally you can see I2C buss connector for future extensions and. Couple green LEDs on a side are just for indicating 3V and 5V power supply. Rpi board mounts on top of Raspberry Pi model B (or A) and should fit on B+ model. He also provides few Python code examples to get started with.