I included Apple's comment, which seemed to be out of context to you, because it was not on the top-10 list, but it was the next paragraph in the linked article, and seemed to be interesting so you could have a view of the mayor tech players.

"Apple's amazing success with low R&D expenditure shows how small the relationship between R&D and great products is."

Also, it's not my intention to make a comparison between Apple and MS here, but I think it's clear that MS spends a lot more because it has a broader set of products and services. Furthermore, you need to define "great product". Because what would seem to be great to consumers, may be totally useless to enterprises. And that is reflected today in the market.