Account authenticator for android using OAuth 2.0
This is an account authenticator library for android which gets you free from doing the chores needed for managing android accounts such as defining a bound service, authenticator xml, etc.
It takes five simple steps to get this library to work, which I have detailed them on http://www.digigene.com/android/accounts-in-android-sample-app/.
For those who are interested in the library itself or would like to know more about the details of the account management in android, I strongly recommend to read the three posts starting from here. Otherwise, there is no need to do so for using the library.