I too am kind of down on the speculation of regime change on Sun, though I'm not sure I can
articulate why. However, I think the point made is entirely valid. Code availability
matters, but code community matters also.
There are different levels of concern, of course. For projects like Postgresql where
development began outside a commercial environment, and have continued into a variety of
sponsored environments, the lack of a large community of participation is not nearly as
important as the demonstrated ability of the project to adapt to sponsorship change. Projects
like Solaris which have only ever lived inside the auspices of a single organization are of
more concern over view changes in the owning organization.
It's a meaningful point to consider when looking at risk-management of software use in the
open source world.