Slashdot linked up this story about a cardboard computer that's already in limited use in Europe. With only 32k of memory, it's functionality is rather limited, but can still do a lot of useful work (mostly inventory and warehouse stuff). However, it should be remembered there was a time when people thought 32k of memory was a luxurious waste.

Not that I can remember such a time. I've just, you know, heard rumors.