There's no NDA anymore, plenty of people streaming it now if you want to get a look at it: http://www.twitch.tv/directory/game/The%20War%20Z

I've played it some, it's not bad but not great. Feels like a softcore Day Z or what Day Z would feel like if it was made for the xbox. Much more pick up and play and you see action faster but it loses some of the terrifying survival feeling Day Z has.