BBM beta for Windows Phone gets transparent Live Tile and more before going public

[Windows Central]

Earlier today it was revealed that not only is the BBM app for Windows Phone very popular, but the beta is ending next week as BlackBerry prepares to make the app available to everyone.
Tonight, version v100.0.0.15 for the private beta has gone live and BlackBerry is sharing the full changelog. Let's see what is new.

Full story from the WPCentral blog...