With the recent relaxation of carry on rules from the TSA for airline travel, I wish Leatherman would make a Squirt derivative that could be carried on. A Squirt P or S without a knife or other scary blades would be well accepted by the traveling public. I have a Victorinox Swiss Army Knife (SAK) 1 gig memory stick with white LED flashlight and pen that I now carry. It gets the TSA goofs going until they realize there are no blades what so ever in it. The Squirt with blunt scissors would make the basis for a great airline TSA friendly multi tool, while my full size SAK travels in my checked luggage.

I've also used my Squirt S as my only knife on a few short backpacking trips without ill effect. If you are a low impact hiker it is all you'll need.