For those who liked Call of Duty 4: Modern Warfare, a new trailer of it’s sequel, Modern Warfare 2, has been revealed!

Hmmm… nice!
UPDATE: New trailers

Multiplayer with interesting bonus rewards:

Flagrunner Multiplayer Trailer (be shure to watch it to the end)

Source: Kotaku, Kotaku and Kotaku
(original post from May 29th 2009)