Halo killed?

Killzone 2 is enough reason for you to buy the PS3. I mean have you seen the Killzone 2 footage from E3? Microsoft is planning to have Halo 3 counter the PS3 launch and they didn't come with any footage but yet Sony have Killzone 2 in-gmae footage? It looks like it could be in-game footage at least and Sony claims it is. The fact that it's all from the first person perspective makes it look more believable . I wonder if this is part of an actual level or just a demo. So far, PS3 is owning E3 and all comers, leaving Microsoft and Nintendo to duke out 2nd place. This footage is just great thought. All that madness, sign me up asap....please.