This is a cool offer... sadly, I don't think you can actually give it away.
At least when I got my invite, even though it did send me a code, when I started the app up, I didn't need to put it in, it just new I was invited. In otherwords, I think the invite is tied to your account, and the code is pretty much worthless.
Don't blame you on having lost interest. I did as well. But, I got my invite early enough that I decided to give it a try. And the app was bad enough that I uninstalled it within a day.
Anyway, for those who are still excited and waiting to get in... I wish I could offer something more than "good luck," but as I can't... well.... good luck!