I was more worried about Apple's long term future under Jobs. It seemed like he bet the farm on everything Apple released, and noone is good enough to win every time.
If so, it seems like it might be a big step backward for portability. One of Emacs' big advantages has been that it (and most of it's packages) work on every major desktop operating system. I share a common configuration between Linux and Windows. If this weren't possible I'd probably start looking for a different editor.