Have you heard about Lockerz?

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I just joined lockerz and its not a ptc or whatever money making site. It's like you can watch videos, answer some little survey for fun, and play games. I'm not really sure about it if it is true but while you are doing stuffs in the site you will earn PTZ(points) and you can redeem it with cool items (branded items, electronics, etc). You can invite friends to join you and earn points. I am not sure about this but my friend told me that it's still on beta. I was surprised tho' because I thought it was some sorta like a ptc but its not. If you have some information please help me thanks! :)