Thank you for your message. On the same properties tab/section, set "Rendering of host's cursor" to Always to see the remote cursor's shapes. You might also want to enable "Set local cursor shape to point" so that you can easily tell the remote cursor from the local one.
So long as it's iOS6 or higher and network-capable device, you should be able to use the mobile Viewer on it. But the mobile Viewer doesn't yet have chat option, only the Full Control mode. We'll be adding more features in the future.