I think this is the most interesting (and telling) one: https://www.google.com/trends/explore?q=android%2C+iphone%2C+windows+phone%2C+blackberry https://www.goo

I think this is the most interesting (and telling) one: https://www.google.com/trends/explore?q=android%2C+iphone%2C+windows+phone%2C+blackberry https://www.google.com/trends/explore?q=android%2C+iphone%2C...