The two smallest models in the Juice series are the C2 and S2. Both models seem to perform better than many full sized multitools, and seem quite sturdy, despite their small size. They are truly a large tool in a small package.
The Leatherman Juice models C2 and S2
The Leatherman Kick is an interesting tool- a little smaller than the original PST, but at a fraction of the weight. The Kick is the smallest of a series of three tools from Leatherman, the other two being the Fuse and the Blast.
Leatherman's Lightweight Offering, the Kick
Most mulitools in the market today are pretty much carbon copies of each other, granted there are some that are totally ingenious and ground breaking in overall design. But they all have the same thing in common; the tools are all implements (tools ex: screwdrivers, file, knife, scissors, etc) are based around a pair of pliers. Meyerco USA with the help of renowned knife artist and designer Blackie Collins have designed what is just the opposite of the now traditional multitool.
Multi tools I will admit tend to be quite large and cumbersome, even when you do need to use them you never end up need all of the tools that it comes with.