Libre office works well on Unix and Microsoft. As more and more people use smart phones and tablets, Libre office could be a cross platform office suite with Android support.
The impact of this, as you know, would be significant.
Android today is predominantly a content consuming device rather than content creating.
Once ported, what is the justification for high end laptops with the exception for software development
I am not aware of any ETA for the Android version. This thread and this thread offer the relvant information.