I think you should go back and read the fine print. Also, it looks like you'll have to purchase a few tiers of whatever they are selling, before they even consider you.
Also, it's an iPad 3G that's mentioned, so those aren't being distributed, until about a month later. If I were you, I'd not opt into this. You're not really testing the iPad for them, you are giving your credit card and info to marketers.