I believe that the official New Moon site is online for a while and was just updated but others sites are posting that it was launched Today. But this isn't the case. We can see a new the stills from the movie, see the trailer and film clip [coming soon], downloads, etc

The features include:
# “Enter the Cullen House” interactive exploration
# “Enter La Push Reservation” interactive exploration
# “About” section with “Story”, “Cast”, “Crew” and “Worldwide” section
# “Media” section with photos and videos includes upcoming film clips and TV spots and brand new images
# “Downloads” Section with widgets, wallpapers and IM icons
# “Mobile” section (coming soon)
# “Community” section with links to Twilight sites
# “Official Store”
# “The World of Twilight” section (coming soon)










click on the pic to see it bigger
Check it out here