Interesting..."can of beans". These days, I'm finding all sorts of cans with pull-top lids. I never hike with cans but while hiking the Chisos mountains last month, one of my friends pulls out a can of mandarin oranges with a pull top lid. Seemed odd and smart at the same time, because he ended up with a spiffy drinking/cooking pot and Esbit pad (the lid) when done. I've carried a p-38 can opener on my key ring for years but can't remember the last time I used it, so I might take it off (it pokes me in the thigh ).
A sign of the times....when can openers pass into history.

Costco has Leatherman PS "TSA Compliant" 1.58oz. tools in a 2 pack for $25. I bought a couple packs for gifts. No knife blade. Scissors, nice pliers, tweezers, file/screwdriver, and slick bottle opener/carabiner. Good for airline travel but still doesn't beat my little Swiss Army Classic for hiking. I play a lot of darts so the Leatherman PS bottle opener and pliers could come in really handy.