YES, I can attest that these (at least the Trainn.org sites) DO WORK, and are legit. I already have recieved about $2000 worth of gifts from this company within the past 2 months, including Two iPhones, 16Gb Ipod Touch, $580 Cash (from their Xbox elite site).
You MUST read all the “offers” fine-print before doing anything though because some are better than others. Make sure you read the ENTIRE Terms-and-Conditions statement as well… if you break any of the company’s rules, your account (and your time) will be wasted (eg. Only ONE account per person, per Trainn Site, per household). I know people who made multiple accounts to try to “refer themselves” to gain referrals…this WON’T work, and the company will Review each submitted referal when you submit your Gift request at the end to be sure each referal you got is legit.
Their iStuff site is good in that there are a variety of Gifts that people can choose from, including iTouch and iPhone on one site…which makes it easier to get referrals.
If anyone wants more details to sign-up (and Proof pictures), and a step-by-step Guide (PDF) about this, it is on the bottom of this site:
http://hello.to/iTouch
Good luck!