Have an unlocked 1520 and was thinking moving over to Androids as most apps are for IOS or Androids . Until I heard Apple said that 30% of its new customers came from Androids . That is a very high percentage by any standard and tells me of high degree of dissatisfaction . Today I upgraded to the very new build and looks like Windows platform may be getting somewhere and worth staying with it especially when I read on The Verge that users have now increased from under 5% to over 8% . Hopefully MS is Not going to drop the ball and is going to run with it