I'm not saying Apple did anything improper, I'm just saying that it would be nice for Arc90 to get some money out of this. It is the number one feature on the Safari 5 "What's New" page, it's worth something to Apple.
And all I was saying that Arc90 was well aware of the terms of their license when they chose it. Should Apple be paid for others who make use of WebKit? After all, it is the core of Chrome OS and Google gets to use it for free.
> As an aside, Apple didn't originally write WebKit, they took it from KHTML. I'm sure Apple has released some other original code as open source.
The Darwin kernel's source used to be released (not sure it still is), I believe Clang is originally an Apple project (and so is the recently opened LLDB, a debugger for LLVM), Apple produced quite a few LLVM-related tools in general and they fund much of LLVM's work (including employing a bunch of LLVM contributors).
I believe big chunks of the Bonjour zeroconf protocol & impl are also open sourced.
They might have reimplemented it (or not). I very much doubt that they would have called up Arc90 and asked them how much money they want.
(My own little theory is that one or a few Safari developers were avid Readability users. They saw the kind of license Readability used and noticed that all they had to do to make it a Safari feature is to give it a nice UI. And that’s when they noticed that they could easily convince others [superiors, that is] that it would be a worthy addition. A quite boring theory since it doesn’t include any grand conspiracy to bully Google, I know.)