I don't feel like those two are mutually exclusive. Nor that $100M could be all his liquid assets—if he does indeed have $100M to donate, then chances are good that he has more.
"Mr. Zuckerberg is setting up a foundation with $100 million of Facebook stock to be used to improve education in America, with the primary goal of helping Newark."
Anytime someone announces that they will invest X million into a public charity, always ask, over what period and under what conditions? This reminds me of how BP pledged $20 billion to help the Gulf states affected by the oil spill, but they didn't mention the tax break they got out it and how it was actually placed in an escrow account with conditions favorable to them.
I applaud his actions but question his timing and motivations.
