Software patents have been a big issue in Europe for the past several years. The debate hinges on establishing finally and forever what is a "trivial" versus "non-trivial" contribution to some field of knowledge. The European patent authorities have employed a very inclusive definition of "non-trivial" and, in effect, grant patents on ideas.
The development of Open Source applications for commercial enterprises is becoming a hot topic. Perhaps very soon, the day will arrive when companies will see open source as a protection rather than a challenge to the control and outright ownership of their business-critical applications.
A very thoughtful analysis of the Squeak community and its future, written in 2004.
OReily - Open Source Open Content Paradigm Shift
" ... the open source story is far from over, and its lessons far from completely understood. Rather than thinking of open source only as a set of software licenses and associated software development practices, we do better to think of it as a field of scientific and economic inquiry, one with many historical precedents, and part of a broader social and economic story".