Soldato
Apples keystone has always been functionality that works, right out of the box. None of the android / windows mobile phones will do video calling out of the box, and even if you do find a phone with a front facing cam, and download an app to do video calling, you can bet it will be a while before it feels as polished as apples does.
I am pretty sure that my windows smartphone from a few years back would do video calling straight from the box, heck even my Symbian based phone does it. All the videos I have seen of Android 2.2 show video calls working OK also.