Its true commitment of Zuckerberg and an example of leadership .What I learned from Zuckerberg :- Few days ago,I reached to an Indian VC for seedfund,I told him Sir I have two apps with business plan and demo then I have shown both apps, He told me you apps are good but I really scared to invest on app, I was surprised!, I asked "Whats your concern sir", He told me , If you have two apps, then might be after few months you'd have 2 more apps. He gave me this example of Zuckerberg, build and follow one path till your app won't die. And its up to you what you decide.