I'm very sorry to say I just heard Arthur C. Clarke has died in Sri Lanka at the age of 90. :(
I'm sure all the Electric Spec editors, writers and readers will join me in saying this is a sad day indeed. Arthur was one of the science fiction greats. We'll miss him. Read more about it in The LA Times, or in USA Today, or elsewhere (post your links in the comments).
Rest in peace, Arthur.