I am new to using Azure Mobile Services (or any mobile dev). I\'ve followed this tutorial to enable Facebook authentication for an Android app. http://azure.microsoft.com/en
Seems like my suspicion about the token was correct. This seems to work..
var serviceUser = this.User as ServiceUser;
var identities = await serviceUser.GetIdentitiesAsync();
var fb = identities.OfType().FirstOrDefault();
var client = new FacebookClient(fb.AccessToken);
dynamic me = client.Get("me", new { fields = "name,id" });
string firstName = me.name;
string lastName = me.last_name;