In my view, this isn't acceptable. You have to think that if the patents were so valuable, Microsoft would be able to leverage them and create a phone that surpasses Android because Microsoft doesn't have to pay for all those patents.
(I used a WinPhone for a number of years. It was a fine phone).
Another company (or two, or twenty) comes along, builds off of that and spends billions on advertising...
Isn't this exactly what patents ARE for?
And I highly doubt Samsung simple took MS engineering and research output, slapped a Samsung logo on it, and advertised it heavily. I doubt anybody would really think that either. Which begs the question...