Change of perspective for Killzone PSP

In bringing the
Killzone franchise to the PSP, Guerilla Games has decided to nix the first-person perspective, opting for third-person gameplay. In doing so, Guerilla hopes to implement deeper stealth strategies into Killzone:
Liberation. Players will reprise the role of Jan Templar, battling the ruthless Helghast, while rescuing hostages.

Can a killer FPS be produced on the PSP? Not if developers are shying away from the task... (And we don't blame them, the lack of a second analogue nub makes the job nearly impossible to accomplish)