Doing a google search, I found this article from 2001 in Design News, which gives some very interesting notes on the design process of the Juice series, and also the Crunch, Wave, and Micra:
Pocket Tool Gets a Makover I think the pieces on the Wave and Crunch are pretty cool.
The next two aren't just on LM, so search the page for "Leatherman" if you're interested...
For those who are interested in manufacture/design, this article has a little bit on the PST and related tools:
Reusing Design Reaps BenefitsAlso on the manufacturing side, this article talks about the fasteners on the Micra:
Engineering News