I love how this post perfectly encapsulates the concept of facebook: Someone with a very comfortable life humble bragging about how he's going to use technology to solve first world problems.
It is a cool idea and an interesting project, and publically declaring it will probably help to motivate some people to take on projects of their own. But I do get the feeling that he could be aiming a little higher. With great power comes great responsibility and all that. The alluded to Iron Man was a billionaire who used technology to fight gods and monsters. Zuckerberg is...tinkering with the internet of things? Can't tell someone else how to live their life, but I would have expected him to make public announcements about the Big Problems and leave projects like this for cocktail party conversation.