You and I have very different working definitions of the phrase "open source", and the philosophy behind it. I'd be curious, If I asked you to pinpoint the start of the open source movement - the exact moment - what you'd choose. If asked the same question, I'd offer up Stallman's "printer parable".
http://www.oreilly.com/openbook/freedom/ch01.html
I chose my "climbing wall" example because IMO it's the closest a story of my own comes to Richard's experience (granted there are differences). To me, that makes it very much an "open source" example.
Between both Richard's printer, and my climbing wall both of us are basically happy with a hardware/software combo. We just want to make a tiny change. But - we can't.
(Unlike Richard, I feel absolutely no righteous anger, but like Richard, I did roll up my sleeves and get to work and now - Yay! the thing I wanted exists in this world!)
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If you still would rather I give a different example that might be better in line with your expectations and personal definitions... fine. When I was a teen, I got a copy of Gary Nutt's book: "Kernel Projects for Linux", using the book, I modified the ext2 file system to allow for "tagging" of file entries (As much as it pains me to say it: think hashtags). I would tag source code with the project name it belonged to.
I used that file system for years and years. I enjoyed this minor feature and found a lot of joy in having done it myself.