(This is in response to a thoughtful post by Adam, who beat me to the punch, and to a controversial recent article (“Long Live Closed-Source Software!“) by the free-thinking Jaron Lanier that Adam discusses.)
No one needs to say “Long live open-source software,” because it is what it is and isn’t going anywhere. Think of it as the ground beneath our feet.
As Lanier explains, closed source is the font of nearly all paradigmatic innovation–the great revolutionary leaps. Open source contributes iterative innovation, such as the best kernel scheduler for variable workloads–this is a problem it is possible to work out slowly, with small changes over a period of years. It is also a problem that doesn’t matter at all to most users–good enough is good enough, though better is, of course, better.
Where the two forms of development come together most interestingly is the use of open source as a stepping stone for closed-source radical innovation. Asus, for example, didn’t have to step forward and create its own OS from the ground up for its EeePC. Even though the thing sports an interface unlike those in most Linux distributions, the underlying guts are the same. Would something like the EeePC even be possible without open source? Could a manufacturer afford to undertake the great expense, and gamble, of working out an OS for itself? Free software lets businesses take chances on projects that would otherwise be too expensive to devise and products that would otherwise be too expensive to market.