OK, so sometimes on the bleeding edge, you get cut. I am a user of Keynote 5.3 (iWork ’09). I use it every day! The new version, which I installed with Mavericks took over my presentations and wouldn’t let them go. In fact, because I had installed Mavericks with my laptop screen down, and was using the external monitor, Mavericks thought that the external monitor was the main monitor. So it wouldn’t/couldn’t show the slideshow at all in an alternate monitor. Bad decision on its part. I had to reinstall Mountain Lion, then reinstall Mavericks with my laptop alone to force it to treat my laptop as the main monitor. Then, even with Mavericks forcing me to use the external monitor to show my presentations, Keynote 6 captured my presentations and wouldn’t let them go without a lot of stupid workaround. The chief insult was the huge shift in workflow it required.
I thought that allowing Apple to test my system to upgrade me when it thought I needed it was fine, because, well, Apple has normally been sensible. But now that it wants to upgrade me to Keynote 6 every time it detects that I have trashed Keynote 6, it is time to turn off the automatic updates.
Power users of Pages and Numbers are whining also. But since I only use Pages for billing, and haven’t left Excel (after a short dalliance with Numbers), I don’t care so much about them. But Apple forcing me to change my workflow because it thinks I’d be better off with Keynote 6 is a little much.