Earlier quoted context omitted.
I think you're broadly right, but you're missing the key point: apple are adding a lot more than a lowercase i to FOSS innovations: they're adding usable interfaces, polish, and the shiny lowercase i. Time Machine is a lot more than branded rsync. It's usable branded rsync. And the usability is what makes it a "game-changer" in the consumer market where rsync and its algorithmic innovation isn't. In many ways, it's t…
Using the idea is one thing, but taking credit for it is another. I think that's where people get hung up. Especially for non-techies that have never heard of (e.g.) rsync, Apple 'invented' versioned backups. This pisses people off that know about rsync because it's giving Apple more credit than they deserve. Apple didn't draw the idea out of thin air and develop it from scratch. They took an existing thing and made…
Honestly, if I developed rsync, the fact that Apple was using it to power Time Machine would be quite an acknowledgement to me.