I just registered here to get an iPhone 4. The thing is that I need 25 referrals in order to get it. You have to join, choose your own gift and then choose and validate one of their offers. I don't know what offers will be available to you, I think it depends on your area, but they range from a few $ to more. You should choose something you need/want (webhosting, poker, international calls etc). The nice thing is that once your offer is activated you qualify for getting your own gift, and you just need a certain number of referrals, depeding on the chosen product. Those products range from all sorts of Apple gadgets to Xbox, vouchers etc.