>>http://www.raspberrypi.org/
>
>Nice page, all hype and one drawing, from which I infer it's an electronic device, and nothing more. It could be anything, from a remote can opener to a detonator, the page doesn't say.
>
>If from the first page I can't glean what the is it, I'm gone.

Guess it doesn't say much does it :-}

AFAICS it runs Linux and you just plug in a monitor and keyboard. Built in Ethernet and USB. Can't be bad for twenty quid?