Android KitKat | Android Developers
Lumia low end devices rules the low segment and helped WP market share to grow but now Google is looking to reclaim the territory. I think there is definitely some reason to worry for MS.
Android 4.4 is designed to run fast, smooth, and responsively on a much broader range of devices than ever before — including on millions of entry-level devices around the world that have as little as 512MB RAM.
Lumia low end devices rules the low segment and helped WP market share to grow but now Google is looking to reclaim the territory. I think there is definitely some reason to worry for MS.