That fake steve got up in rankings on most important tech people is proof of that :)
"The book, in part, led to Mr. Lyons's unmasking. Last year, his agent showed the manuscript to several book publishers and told them the anonymous author was a published novelist and writer for a major business magazine. The New York Times found Mr. Lyons by looking for writers who fit those two criteria, and then by comparing the writing of "Fake Steve" to a blog Mr. Lyons writes in his own name, called Floating Point (floatingpoint.wordpress.com)."
The NYT also gets to IM the man himself.
"[Steve Jobs] said in an instant message conversation that he had no interest in reading Mr. Lyons's novel. "