Facebook unveiled its Facebook Home application which will feed status updates from the social network on to the lock screen and home screen of some Android phones. It said this feature, called Cover Feed, "is for those in-between moments like waiting in line at the grocery store or between classes when you want to see what's going on in your world." Facebook Home also enables the use of Facebook messenger and/or SMS while using other apps.
Facebook said "Home will be available as a free download from the Google Play Store starting April 12. Home works on the HTC One X, HTC One X+, Samsung GALAXY S III and Samsung GALAXY Note II. Home will also work on the forthcoming HTC One and Samsung GALAXY S4, and on more devices in the coming months."
It added that "Home will also be available pre-installed on phones through the Facebook Home Program. HTC and AT&T are the first companies working together to deliver a phone with Home. It's called the HTC First and it goes on sale April 12. We designed Home to be the next version of Facebook. But we also wanted to do something more. We wanted to reimagine the way we all use computing devices to make us more connected and bring us closer to the people we care about." source: Facebook statement