The Raspberry Pi is a fantastic little machine for doing all sorts of things, and because the Raspberry Pi is so small, it's also really portable. DIYer Nathan Morgan used that size to his advantage to create a tiny, portable computer complete with keyboard, trackpad, Bluetooth and Wi-Fi.
Morgan's build uses a Raspberry Pi, a 3.5-inch LCD screen from a car's backup camera system, a WiFi dongle, Bluetooth Dongle, and a tiny keyboard and trackpad. The little computer even has a 64GB SSD drive built into it. Then, the whole thing is packed into a 3D-printed case. It's a neat little machine that ends up looking something like a bulky Nintendo DS, but it has a surprisingly amount of power considering its size. The grand total for the project was about $US390 (most of that cost being the SSD). Head over to Morgan's site for a full breakdown of the parts, schematics, and everything else you need to build this for yourself.
Mobile Raspberry Pi Computer: Build your own portable Pi-to-Go [Parts People via Make]