Nokia has posted the first clue for their N9 Seconds Contest held at n9seconds.com. Twelve out of the twenty codes have already been found and eight remain"Clever eyes look to where the story is told. On the 9th they can be found."
[UPDATE] The answer has been found 'GBNWAT'
Where the story is told apparently refers to the video description. And you can find it after the 9th letter.