Also revealed in the filing was news that the social platform's biggest game developer, Zynga, accounts for "approximately 12 percent" of Facebook's revenue. Zynga had its own IPO late last year, which sought to raise $1 billion in going public.
That 12 percent is enough to have Zuckerberg and co. worried about going public, as the filing notes, "If the use of Zynga games on our Platform declines, if Zynga launches games on or migrates games to competing platforms, or if we fail to maintain good relations with Zynga, we may lose Zynga as a significant Platform developer and our financial results may be adversely affected." So, uh, here's hoping Google+ doesn't get into games, eh?
... oh, right.