Everyone tries to copy things and make them better for their products. What matters is that what they copy, to be better. I have the latest IOS installed, a finished public build and works ok. same was with OSX last year. the thing is that others Deliver, Microsoft seems to be all the time in the beta stage with "available soon or ready soon" motto.
I am using an iphone 6, but to be honest, galaxy s6 and s6 edge which have borrowed some design patterns from the iphone 6 look much better.
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