MS has published a lengthy blogpost about it. An interesting read.
http://blogs.technet.com/b/microsoft_on_the_issues/archive/2013/08/15/the-limits-of-google-s-openness.aspx
Yep I read that, wow, but I have no words to describe Googles arse hattery at this, at least language I cant use here.
How on earth are they getting away with this, if the was MS their would be outrage.
Asking for it to be made in HTML5???? none of the other apps are HTML5, even the Youtube apps on iOS and Droid, break the terms and conditions put against MS making their own!
Lost any kind of respect for Google, no call at all for this behaviour, they have no excuses now.