It was teased at Build 2014 and is now finally available. Windows Phone 8.1 users can now download the Live Lock Screen BETA app to spruce up their Lock screens.



From WP Central:

You'll need Windows Phone 8.1 to use this. If that's you, go ahead and check it out. Let us know in the comments below what you think of the Live Lock Screen app. And guess what? It does work with 512MB devices, which is a relief since Microsoft previously said it would require 1GB of RAM or more at launch. Enjoy!

  Microsofts Live Lock Screen app now available for Windows Phone 8.1