People have been using their Raspberry Pi to make all sorts of cool things, including portable computers.
A Raspberry Pi laptop is basically the combination of a Raspberry Pi, an Atrix Lapdock, some cables and other misc items.
The credit for the image and to see this unit in action, please go to this page here:
http://blog.pythonicneteng.com/2013/01/raspberry-pi-laptop.html
Videos and more are available on the site, along with external links in case you’d like to create your own.