If H.P. lived today, it's a safe bet his iPad cover would look a lot like this one. This custom-made cover comes straight from the vaults of etsy and the maker sums its origins up in the most nerdy of ways:
The origin of the Necronomicon is shrouded in mystery. Written by the crazed Abdul Alhazred, this ancient, mouldy tome contains untold arcane knowledge, incantations to summon elder gods, and access to boundless networks. It has been handed down from person to person at great personal cost - dangerous to keep, it is even more dangerous to study. Guard your sanity with care, for the history of the Old Ones is contained within. Bound with magnetic clasps, the book is impressive in size and form, seeming almost to pulsate with seething life. For those who do the bidding of Yog-Sothoth and Cthulhu, look no further. Curiously, the form seems to change, to fit iPads, Nooks, Kindles, Kobos, and countless other tablets and eReaders, depending on the bearer, and available as a journal option as well.
ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn
In his house at R'lyeh, dead Cthulhu waits dreaming.
Heed the call.
(Please allow 7-10 business days for this rare archaeological find to ship)