"a book called The Hitchhiker's Guide to the Galaxy"

In 1992 Douglas Adams founded the h2g2 website as a kind of online version of the Hitchhiker's Guide, "an unconventional guide to life, the universe and everything". Of course this could also be a definition of Wikipedia, making us all Ford Prefects, travelling the world (if not the universe) to update the 'guide'.

i phone
Creative Commons Attribution Share AlikeiPhone - Credit: Renato Mitra

It is also worth pondering what Douglas Adams, a life-long Mac lover and gadget fan, would have made of the iPhone.

Eoin Colfer, author of the Artemis Fowl series and the official The Hitchhiker's Guide sequel And Another Thing..., commented  “I think the Hitchhiker’s Guide basically was the iPhone. Adams even described the guide as a small black gadget with a touch button."