I thought Hanselman's tweet made the point far better than the entire article because the article very quickly became quite the stretch trying to find examples: overlooking the fact that many, many people are still using dead-tree calendars, folders, and clipboards. As well as binoculars and magnifying glasses.

The really interesting point - that there are more and more icons that truly are becoming "icons" in a more metaphorical sense of the word - was already made quite poignantly by the tweet.