Well, they probably didn't want to wait 8 years. And the XFree86 community (as it was then) probably wouldn't have been interested in a huge number of dramatic changes being dumped on them out of the blue.
Posted Sep 3, 2008 13:06 UTC (Wed) by felixfix (subscriber, #242)
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That's what I was thinking. If Apple had done the coding or at least paid for it, it wouldn't have taken 8 years, but the X group was so fractious that there would have been a more acrimonious split, possibly involving Apple keeping their changes to themselves.