2. It happened with Chaos Rings and rooted Androids.
Came here to say this. Also happened on other FF games as well. I have no beef with them doing this (however stupid it may be because there are already workarounds to get it working again), but there needs to be a warning on the page that says it won't work on rooted devices.
At least they are making it right (from the Joystiq article linked above):
"No customer should be out of pocket when we were not clear from the start, so we'll get the game updated as soon as possible so that everyone who wants to play Deus Ex: The Fall can do regardless of whether their device is jailbroken or not. As soon as this update is live we will communicate this via the Eidos Montreal Community channels"