Battlelog
I've only seen a few remarks made about this subject. Does EA/DICE plan to make an official Battlelog app for the Windows Phones sometime soon or in the near future? I've looked at the third party apps but I don't really trust them.
From TheBikingViking (Battlelog Producer) in this thread: http://battlelog.battlefield.com/bf3/forum/threadview/2832654625260700772/
"We have an Android app on the way; I know it is late and trust me, we want to release it as soon as possible. Hopefully I will be able to give a date soon.
We have no plans for a Windows Phone 8 app at the moment. For the moment, our focus will be on apps for Android and iOS devices, as they combined have the far majority of all smartphone and tablet marketshare. If Windows Phone 8 gains more marketshare, we will definitely consider it."That's fair. I appreciate the reply back.