This is how I completed my offer:
The one that I completed is to win a free macbook.
Its a offer for trivia sent to your phone. so you need to enter your phone number.
you can cancel it before you receive any of the questions which will cost you $2 each so make sure you do this by (after you receive confirmation that you have joined on your phone, sending the text msg stop to 84040. they will send you a text saying you have unsubscribed to this.
This way you do not get the questions texted to you but still get credit for completing the offer I already have!
You need to get 5 referrals to do the same in order to get you ipod!
You can most kinds of ipods including touch!
This is so much fun