Download the app, «Neptune Client» – its a great way of testing the Neptune templates.
The Neptune client in demo mode (and as downloaded) uses our IDES system for demo purposes but can easily be configured to connect to any SAP backend with Neptune installed. Just go to preferences and set up your own backend. See this blog for more information: http://scn.sap.com/community/mobile/blog/2014/05/04/neptune-hybrid-ui5-client-for-android-and-ios-released
Windows Phone and Windows 8 apps are in development and should be available as well in the near future.
Search for “neptuneclient” on Google Play and “neptune client” on App Store and you should find it. Or simply click on the icons below.