Just to back this up more (sorry), you can actually read about how the semiconductor industry works.
They share a certain amount of information with reports, generated by input from a large number of companies, which supply resources through assignees to this organization.
What is this organization?
ITRS - International Technology Roadmap for Semiconductors
http://www.itrs.net/
You can read the latest report (no NDA required!):
http://www.itrs.net/Links/2008ITRS/Home2008.htm
More specifically, the 2008 Update Overview:
http://www.itrs.net/Links/2008ITRS/Update/2008_Update.pdf
The reports are reworked from the ground up, every other year (odd years), then just a relatively minor refresh on the even years.
So, with just a little time, you can actually read the roadmap used (more or less) by all silicon semiconductor companies (IDMs, Fabs, you name it).
L. Scrub