Just a quick heads up for those worrying that the changes that will at some point probably cripple write access to /system even for root-enabled apps did not make it into Android 4.4.3.

This means you can remount /system as read-write, just as before, change build.prop, push APKs to /system/app, and do whatever you want without rebooting into recovery.

For now, you're safe. But probably not for long. And when the hammer drops, we'll have yet another reason to opt in for a custom ROM or kernel, because nobody can take our freedom, not even the mighty El Goog.