Teaser. Teaser never changes. Not much info to go with this trailer I’m afraid apart from a release date of “Fall 2010″ ad the fact its not being developed by the same team that did Fallout 3 but instead by Obsidian Entertainment who did the earlier ?Fallout games that were set on the west coast. More info after the jump;

Experience all the sights and sounds of fabulous New Vegas, brought to you by Vault-Tec, America’s First Choice in Post Nuclear Simulation. Explore the treacherous wastes of the Great Southwest from the safety and comfort of your very own vault: Meet new people, confront terrifying creatures, and arm yourself with the latest high-tech weaponry as you make a name for yourself on a thrilling new journey across the Mojave wasteland. A word of warning, however – while Vault-Tec engineers have prepared for every contingency,* in Vegas, fortunes can change in an instant. Enjoy your stay.

* Should not be construed as a legally-binding claim.