Yeah, Raspberry is basically an open motherboard. Just small and with slightly less capabilities. And as I said before, Cubox is more user friendly, but then, much more limited.
Fackie:
Are you talking about something like
this? And fun things to do with it? Plenty.
I'd personally mount the whole thing into a military type plastic case, along with a display and folded inside, a rubber keyboard. Also, in the box I'd keep a few folding plastic plates that I can slide out and keep the keyboard on. Thus, making myself a computer in a box. How to power it? Keep a small battery that's equal to the power required for the Raspberry. Drill a hole in the side or back of the box run the power cable to it. And be sure to put some foam padding around the display to prevent it from cracking.
Mount the PI close to the walls of the box and drill holes for the connectors or hell, keep it in the middle and get extenders.
Spray paint the box, camo-style and it should look completely bad-ass.
^That's the type of box I'm talking about.