I wouldn't call it a dead philosophy, just a marginalized one. There are still plenty of people around who treat their phone as a means to an end. Frankly, the new philosophy of hardware makers trying to get phones to take over people's lives is a morally bankrupt one.

I'm reminded of Star Trek and the way technology is depicted on the show. Most episodes are about people (human or alien) and their relationships to one another. Technology is only a means to an end on Star Trek.

One episode stands out, however: The Game [1]. In this episode, nearly the entire Enterprise comes under the thrall of an addictive video game. The ship would've been lost if not for the efforts of an intrepid pair of youngsters. It's an interesting inversion of the usual trope that the older generation is the one warning against the dangers of a new form of entertainment.

But I digress. I brought up Star Trek because I think the show makes a very important point: humans matter, technology is just a tool. When technology starts to matter too much, humans suffer.

[1] http://memory-alpha.wikia.com/wiki/The_Game_(episode)