Mike H,
The Gossman PSK is a small fixed blade knife.

Buffalohump,
You are missing your own compass and map of the area. Don't assume that you will always be together, a compass is a pretty basic nav tool and many survival situations get a kick start from people (experienced or not) getting lost. I take a small Garmin (Geko 301) GPS too, but that's just me. I don't see a signal mirror either.

DR's PSP is a good thing to have and it contains the mirror, but the button compass in it should be a back-up. A good sighting compass like a Silva Ranger or Suunto MC-2G would be on my list.
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Better is the Enemy of Good Enough.
Okay, what’s your point??