Is it possible to have one nether portal for all words?

I run a bukkit minecraft server with Multiverse and I was wondering if it's possible to just use one nether for all the worlds, so no matter what world the player is on they always will go to the same nether, but at different locations of course.

No because that would be cheating or they just haven't put that in the game but maybe in a future update

I know in some mod packs you can have different portals. I would say yes because if you could get another portal to spawn it may work. How do you expect so many portals in minecraft servers to work.