Can Corona Cloud be used to send push notifications to select users instead of all users?
From the cloud page: http://www.coronalabs.com/products/corona-cloud/
Push Notifications
Communicate regularly with your users and send them the right messages. If you are serious about keeping your audience and growing their engagement, there is no better tool than push notifications.
Corona Cloud lets you segment your users and target them more effectively.
How can I segment my users? The only option I see is “All Users” in the Send Push Notification Menu.