Nexus 5: Released with Android KitKat (KeyLimePie)
Android KitKat rumoured as KeyLimePie has been officially released by Google along with Nexus 5. The good news is, KitKat 4.4 will be able to rock on older and low end devices with ram as low as 512MB. This is the cool and innovative step taken by Google because every time a new OS is released, it's specs are relatively high as compared to previous versions.