[He pauses, only because he's not sure how to explain how 'part of him' is a little different than just...an implant in his brain.]

SAM has a direct feed into anything I see or hear or feel. That means he can provide me with advanced help that a normal AI couldn't. We Pathfinders end up in situations with a lot of unknowns all the time, so SAM's direct link to us comes in handy.