I just picked up a Leatherman Juice Xe6 for my kit and really like it. It is very compact and has a saw, file, diamond file, serrated blade in addition to the usual suspects. Great selection of stuff for a compact solution. The only downside is it's a little heavy at 6.8 oz.

What I really wish is someone would make this type of multitool, but use titanium for the pliers and the other structual items in the tool to cut weight. Blades and such should remain stainless.

-john