I don't think acting out of self-interest (e.g. porting to get more developer interest) implies that the "Don't be evil" mantra is still alive (not sure if this

I don't think acting out of self-interest (e.g. porting to get more developer interest) implies that the "Don't be evil" mantra is still alive (not sure if this is what you meant in your post, maybe it's just how I read it). Maybe it goes without saying but Google really wants their framework to be THE framework for doing machine learning because it has so many benefits for them. For example, if you have the best ecosystem/framework for doing ML, chances are any newcomers to the field (some of whom will later be experts) will gain familiarity with it, which would make the hiring situation for your ML team much better. Regardless, I'm in the same situation as you w.r.t. Windows at work and have the same reaction (love it and have been waiting for the port).