You'll want to cache the content on the phone itself (probably in sqlite), you'll want check for new remote content at intervals when your application is in the foreground, and/or perhaps even use something like Google Cloud Messaging to ping your application in case the data needs to be refreshed rapidly -- but irregularly (like you would have to do with a chat application or a twitter client).
As Stephan mentioned, you can cache the data in SQLite, on top of that, you can use contentProvider, to return you a Cursor on the data stored such as login name.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.