I'm all for raising the awareness about how dangerous any addiction can be, but comparing amphetamines and alcohol to using a smartphone is a bit far-fetched.
There are many things you can do with a smartphone, many uses are bad, but some are good. I'm in the same case as the post you replied to. I use my smartphone to review flashcards and read books when I commute, and I don't see any better way to use my time.
...ah, the Paul Erdos defense:
http://amphetamines.com/paul-erdos.html
> I spend too much time on my phone, but a lot of it is useful and productive.
Looks like we might need to an another item to the list:
http://www.magicmgmt.com/magic/abuse-excuse/