As the title says the NDA for MWO has been lifted.

You can now spek freely about the game and take screenshots and videos of the game.

Announcement here

The game is still in Closed Beta, though it could just as well be in Open beta as there seems to be free beta keys to be had all over the place.

sweet now therell be a huge influx of OVA's with mwo footage and 'Iron Man'

Hey.. Good Idea.... } hehe