I like neither Na'vi nor Klingon, as the future global language. Especially when you have to dress up for it :D

We also need a future international language. One which is easy to learn, as well !

And that's not English ! Esperanto ? Let's move forward :)

At least Bill Shatner speaks Esperanto. Please confirm at http//www.lernu.net

Klingon is difficult, but Esperanto is worldwide. And easy, of course :)

As in http://www.youtube.com/watch?v=g2LPVcsL2k0