Growing Mobile Games and Apps with Facebook- Facebook Developers: "Once a mobile app integrates with Facebook, people can log into the app in one click, without needing to remember a separate user name and password. Once the mobile app is connected to their Facebook account, users can find friends and share activity (such as scores and achievements) back to Facebook. Additionally, a bookmark will be added on the Facebook mobile app, so it's easy to re-engage.
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'via Blog this'
