PetVille Tahiki Magic Door: Everything you need to know

For weeks, we've been seeing a PetVille loading screen that showed an attic space with a locked door and a sign that says 'Tahiki' sitting above it. Now, the attic is officially unlocked, and you'll have the chance to find out what's behind that locked door, but getting past all 10 of those locks will require a little help from your generous friends. 

What is there to do on Petville?

I came across an interesting discussion on the Official Petville Forums. One user, who shall remain anonymous asked what is Zynga’s evil plan behind their newest game. He wanted to know if he was missing anything to the evil plot. He surmised:
What else is there to do besides buy things for you pet or decorate the rooms, cleaning up snacks that the pet gets from somewhere and visiting people and popping bubbles. I guess more stuff will come along but my pet is already bored of visiting people.
One person was quick to defend Petville and said that he could give his pet an Extreme Petville Make-over. Another user suggested that he give his pet a backstory.