All those articles are current and discussing the lack of profitability from 2010 onwards. I suggest you read them.
But since you asked, here is yet
another article discussing the widely known fact that Android doesn't make Google money
(yet):
http://www.businessweek.com/article...lion-android-activations-wheres-the-profit#p2
Look an Android fanboy making the very argument that I am:
http://gigaom.com/mobile/why-google-isnt-worried-about-androids-revenue/
Like it or not this is the reality. This isn't an "Android sucks" argument. Nor is it a "Android will fail" statement. This is the simple fact that Google hasn't made profits from Android
...yet. See that?
YET.
Google is smart enough to know that the future is in mobile devices and they are willing to throw profits to the wind to be in a dominant position in that future industry, and be a major guiding force in future technologies that benefit their vision for computing.