IGN has a very interesting interview with Sony's very own Phil Harrison, the man in charge of SCEA's worldwide game studios, and even includes a playable video of the interview itself. Included are some detailed explanations on the PS3 version of popular franchise Singstar, as well as some comments on Microsoft's Halo franchise.
Harrison would not comment on the Killzone speculation, but dismissed the idea that Sony had to focus its planning to counteract Halo 3. "I have a great deal of respect for Halo, I think it's a great piece of software, but it's one title," Harrison said. "I think that it's very dangerous to build an entire brand personality or platform around a single title. At PlayStation what we have done successfully... is to create tremendously varied entertainment opportunities on our platforms that cover a lot of different bases, a lot of different game styles and as a result grow the market for a lot of different users. We've been very successful doing that. We'll continue to do that. And we would be very careless if we were to focus on one specific title."