This is not an new issue actually many companies make enterpise application not only on mobile but on web and of course Desktop app, there are many issues regarding the developement of enterpise application on Android, like:
- Create an Update for your application
- Debugging the application and stacktrace reports
- Security the data, this is not only for enterprise but there is a lot of paranoid regarding to this you can try the SSL or he VPN approach also trying to encrypt the database but at the end there are some boundaries that you probably will have to learn to live with and expose.
Last Google I/O there as this great presentation called Taking Android to Work, you will see multiple approach and issues regarding the enterprise application and features on Android platform.
You can always try Push link service, or take a simpler approach like it has been mention in Update (Private) android application
