No, it's not a charity. But he's giving away all his money to charity..? How is that not philanthropic? How are gates or zuckerberg not philanthropists?
I listed some causes I think are valuable in the interview, but in general I think GiveWell and ACE are good evaluators:
* http://www.givewell.org/ * http://www.animalcharityevaluators.org/
For each charity they recommend, they have estimates of number of lives saved per dollar.