Follow the instructions and all you end up with is a folded piece of paper. The site doesn't bother to explain what you can do with the paper though. Seems like a significant ommission to me!
And where's my promised pizza?
I am not a Bitcoin user and I also don't get it. Could anyone else please explain what this hash on the piece of paper is? Is this an address used to send Bitcoins to?
Sequence starting with "1" together with the QR code are the Bitcoin address where you can send Bitcoins to.
Sequence starting with "5" inside of the wallet is the private key, which you use to redeem the funds sent to the address in the first step.
exactly HOW do you redeem the funds sent to address in the first step?
For example Electrum client (electrum.org) allows you to import these keys. Or you can use MtGox Redeem code feature. I'm pretty sure other clients and web wallets have also this functionality.
Where the instructions say fold - you fold 180 degrees, not 90. So the wallet stays always flat. I added the 180 degrees note to the instructions.
It's also worth noting that the direction of the fold is always away from the printed side. The black blocks are meant as a security layer which gets folded overtop the key info (so you can't see the keys through the paper) and the final fold followed by taping of the ends together seals everything in with only the QR code and the "Remarks" area showing on the outside.