Raspberry Pi is a tiny mini computer that will make a new revolution in the future world. Thanks to WSO2Con I got a free Raspberry Pi. It’s super awesome. I really love it. We can just plug and play with this device. But you should have some accessories to get started. Currently there are two Raspberry Pi models available in the market. They are Model A($25) and Model B($35). The major different of these two models are Model A has 256MB RAM, one USB port and no Ethernet port, Model B has 512MB RAM, 2 USB ports and and an Ethernet port. If you are a hacker its good to buy a Model B. I got a free Raspberry Pi Model B device at WSO2Con.