The Nokia 1100 [...] is a very simple GSM mobile phone produced by Nokia [...] the world's best selling phone handset as well as the best selling consumer electronics device in the world. (http://en.wikipedia.org/wiki/Nokia_1100)
IMO the author has a point about the smartphones, but completely misses the mark here.
It's very possible that low-end smartphones will take over the dumphone market soon and/or that cheap Chinese phones will overrun it, but what the author proposes doesn't address that either.