The Leatherman® Wave and Surge are the best known of the grown up multi-tools but there are several other significant and innovative players in this market sector.
SOG® deserve a particular mention, as their Compound Leverage™ mechanism is the only example we have found of the use of gears as a force multiplier in a multitool.
Gerber's one-hand-opening flip out pliers seem very robust, I like the look of their heavy duty Diesel model. Their innovation of exchangeable saw blades is an excellent idea too. They also offer a choice of needle or blunt nosed across many tools in the range.