Mossberg: How Google’s bold moves shake up the tech industry

Google’s decision to become a full-fledged, vertically integrated device maker — controlling and blending together hardware, software and ecosystem design — may one day seem inevitable, obvious, or even a little late. But in the short and medium term, it’s a huge, bold move that will pose new challenges for the other major players in the tech industry.
That’s especially true because the company made it clear that the array of new Google-made hardware devices it roll