Gamal Ibrahim chose this name for his child in honor of the social network's role in the recent Egyptian revolution that toppled the Honi Mubarak regime. The revolt against longtime president Hosni Mubarak began on January 25th and was largely fueled by young people organizing themselves on Facebook and other social websites. "Facebook Ibrahim" does have a nice ring to it. At least it's not "MySpace Ibrahim". Mark Zuckerberg should be honored. So far, there have been no reports of anybody naming their children OMG Facts...
In fact, many credit a Facebook page for starting the movement in the first place. Before the massive protests, a 30-year-old Egyptian marketing executive for Google named Wael Ghonim started a Facebook page called "We are all Khaled Said" in memory of a critic of the government who was beaten to death by police in June. This Facebook page quickly became a central hub and organizing tool for Egyptian protests.
Check out this profile of Ghonim on Newsweek. ("The Facebook Freedom Fighter"