Last night I upgraded since, given how the Notes app constantly shits the bed, I was interested in the new iOS "handoff" stuff.
Well. Every time I log in, about a minute later, every app goes hypnowheel, and even the shell can't fork. It stays that way for at least 30 minutes. It made me nostalgic for Solaris 2, as I was power cycling it for the fourth time.
Also, whenever the screen would auto-lock, I couldn't type my password: mouse and keyboard events were going to the screen saver itself instead of an unlock dialog, and I had to ssh in to kill ScreenSaverEngine.
Yup, we're done here.
It's pretty fucking ugly, too.