it took them about 5 years too long to transition from Carbon to Cocoa, even though it was clear from the very first OS X version that Carbon was going to be replaced and would never have a 64-bit version.
That wasn't entirely their fault. Apple actually did promise a 64-bit Carbon and included it in developer previews, but yanked it shortly before Leopard shipped.
That wasn't entirely their fault. Apple actually did promise a 64-bit Carbon and included it in developer previews, but yanked it shortly before Leopard shipped.