Great thread, re: having stuff on your person (first-line gear).
Our own Alan Romania wrote a good article on first-line gear at the Kachina Rescue website. The site is not coming up for me right now but here is the
cached version.
Switlik has a few good ideas on how to carry your gear.
That webbing looks like standard dimension PALS, which means you could securely attach any of a very wide variety of aftermarket pouches to the vest. Very configurable; I like it.
Now I just need a helicopter or plane...