Facebook Home is a new product from Facebook which will be releasing on April 12th 2013. While a leaked version of Facebook Face is available over internet which is NOt a completed version which lacks the Chat Heads feature.
I Just tried it on my Samsung Galaxy S2
You can install this on your Android devices if your phone is a rooted one.
If you already installed the facebook,
1. delete the Facebook apk
I used Super Manager for that
Path of APK file
2. Restart Device
3. Install Facebook from Google Play
4. Uninstall Facebook (you can use Application manger)
5. Download the APK files and install them
Read more here and get the APK files from here