Are you a Facebook Home user? Starting Monday, Facebook Home is now offering content from Instagram, Flickr, Tumblr and Pinterest on the app's lockscreen. The feature is still not ready for general use though and is only available to users registered in Facebook's beta program and running the latest Facebook version 3.8 beta.Once you have the latest beta installed, you will have to run through a few steps to select the apps you want to sync with Facebook Home and you will be ready to go. You will be able to like and comment on those four sites directly from your Facebook Home lock screen and you can easily head over to any of the four individual web sites for more information with just a click of a button.
You can learn how to get the latest Facebook Beta here. You can also consider holding off for some time If you prefer to wait for the final build to roll out.
source: Facebook