Recent years have seen substantial changes in the geospatial industry. One of those changes has been the growth in maturity and adoption of free and open source solutions. Many early adopters of FOSS solutions chose them based on "philosophical" reasons, but increasingly large enterprises and government organizations are choosing these solutions for pragmatic business reasons. In many cases organizations are using a mixture of open and closed source solutions.
Emphasis above is mine. What the hell is up with the scare quotes and the impractical, ideology-driven, early adopter strawman? If you were there in the early FOSS4G days, you'll remember that it was in fact about pragmatic solutions: proprietary software often lacked features that we needed to do our jobs or was riddled with bugs that we suspected wouldn't be fixed any time soon. The need to get shit done was the driving force behind GDAL, MapServer, PostGIS, and friends. Driving a stake through the heart of ArcIMS was just gravy.
Update (2011-01-12): Better: http://sgillies.net/blog/1065/thats-more-like-it