The savvy investors probably don't have enough confidence in Facebook to IPO. Zuckerberg is still being sued by more than 2 parties in court. And time's running out for trendy startups to IPO and steal as much of grandma and grandpa's pension funds (what's left of it) before the stock market and the dollar collapses. Although maybe if Obama was re-elected Mark would have a chance to get those court cases thrown out.