I really, really enjoyed watching the whole Amnesia Fortnight documentary - amazing insight into the development of games & interesting/entertaining people
The Zombie game kind of reminds me of "Infectionator", a game I was hopelessly addicted to at my last office job. Basically you infect the whole world as a zombie, and can recruit Ronald McDonald, Michael Jackson (still alive at the time) Justin Bieber I believe.. and more. As zombies.