The Helghast To Become A Mainstream Success? Nah.

According to the Playstation Blog Killzone 2 is going to be "everywhere".
[quote]
"Thanks everyone for the positive reception! I can confirm that we definitely have Trophies in the title," also adding "And I can also say that you will be seeing Killzone 2 ads everywhere very soon. Our Marketing guys have been working their tail off."</blockquote>

We'll believe it when we see it.