Hello all, some weeks ago Valve published its Sream Authenticator app for Windows phone 8.1 and 10. It's a victory for all of us, and we finally have this app for our phones! I don't know if our petition had an impact (maybe very little) on their plans, but the objective has been achieved. Thanks to all of you, every single signature had a great importance, and we finally have this great app for windows phone! Best!