A very simple example, we've had customers want to make a permit/deny policy decision based upon the suitability of the OS of endpoints.
For example, and this is pushing the limit, but if a device is running XP then a policy to deny total access for the financial application might be suitable. Or something more granular, it might be the policy that a smartdevice must be running iOS 10.x, for devices running older versions a level of restriction might be enforced at the data-center or the internet edge.
Does that give you an idea of the use-cases this context could be used for?