To byl apriil...Welcome to Gmail's April Fool's Day joke
As you may have guessed, Gmail Paper is not a real product or feature of Gmail. No, we don't plan on sending you boxes and boxes of your email in hard copy form.
So, now that you know, here's what you can do:
* Send the joke to a friend you think will fall for it
* Sign in to your Gmail account
* Get a Gmail account (if you got this far and you don't have one already)
Did the links open up in a mail program you don't use? To set Gmail as your default mail client, try downloading the Google Toolbar for Firefox