During the event in San Francisco, Microsoft has shown a new trailer of Remedy dell'attesissimo action-adventure Alan Wake, in which we can see a mix of old and new scenes. The movie ends with the inscription "May 2010" to indicate the month in the game, many stores give it overseas for 25 May, making it likely that that's the exact release date (with us as always move to the next Friday, and May 28 in this case).

Here is the link to the movie. Update: also added the link to the HD version.

Alan Wake - X10 Trailer | HD version