Don,
Yes, the ShareNet KM system mentioned in the Economist article http://www.economist.com/printedition/displayStory.cfm?Story_ID=638605
is an ACS Tcl based system entirely developed and maintained by
our Munich ArsDigita team.
ShareNet is probably the most important KM System at Siemens - the
only one the Siemens CEO mentioned in the last year's press conference:
http://w4.siemens.de/en2/html/press/pk_eb/pierer_rede.html