A couple days ago, I found out about this piece of awesomeness.

Zelda Classic is a "Zelda Engine" where you can make your own 'zelda' games (quests).
There are already many quests made for this game.

Official Website:
http://www.zeldaclassic.com/

This is a must have Zelda Quest!
http://www.purezc.com/index.php?page=quests&id=372

More quests that you can try out:
http://www.purezc.com/index.php?page=quests


There is also a linux version available of this engine. Could this be somehow be ported to N900/N9/N950?


Download ZeldaClassic:
http://www.zeldaclassic.com/downloads.php#zc


The ZeldaClassic app without any Quests, has the original NES quest on it.


Edit:

What Is ZC?

Zelda Classic is a tribute to (what we think is) the greatest video game of all time: Nintendo's The Legend of Zelda. It has been developed into an exact replica of the NES version that we all know and love. Beyond that, Zelda Classic allows the development of new quests that can use either the traditional graphics or enhanced graphics, as well as new enemies, items, and challenges.