The Android version of Microsoft's voice-driven assistant has been leaked

It's a good news for android lovers, because it was not supposed to be released till 29 July, together with Windows 10.
Despite the fact that this is a leaked version, users share good reviews and say that is similar to windows handsets.
Peter Bright, a tester of Ars Technica said that the application worked on his Nexus 5 with Android 5.1, despite the fact that it was originally made just for Windows. Microsoft announced that they will be making a version for Android and iOS.
Cortana is brought to life by the words, "Hey Cortana". Peter Bright though, said that Cortana on Android missed some features seen on Windows, said that you could not listen to music or read emails for flight numbers. Cortana also missed some privacy functions that would stop it springing into life when users are busy.
However it is not totally clear if the people would prefer it to Google Now, because Google is more integrated on Android and more capable to deliver a good and interesting service.