title: Webservice credentials - OpenID/Android AccountManager?
body: <p>I'm building a webservice and would like to use the user's google account credentials.</p>
  
  <p>The service runs on GAE and will have a web client and an Android native client.</p>
  
  <p>This is my first attempt of something like this and I've been reading about OpenID and the Android AccountManager library.</p>
  
  <p>I'm still not sure what are my options in terms of storing the users in my Datastore. What Identifier should I use ? Is it possible to use OpenID on a native Android application ?</p>
  
  <p>Any help and/or pointers would be appreciated. Thanks.</p>