I watched the Microsoft pressconference at X06 a couple of days ago. I had to watch the video several times because something caught my eye.
In the begining of the video, there are gamertags fading in and out on the big screen. After 35 seconds the gamertag "Kuksugare" appears. I don't know who selected the tags to be shown, but that tag was a bad idea.

Kuksugare means c***sucker in swedish.