[giarc]

As for iOS apps, I imagine Apple's new attempt to remove unsupported apps from the app store will result in many of these apps getting the boot soon.

I've already seen the notification when opening an app that it might perform slowly since it is not supported (or something along those lines).

[DigitalJack]

I've seen a notification like that, but it had to do with an App not being compiled for 64 bit architecture.