I really really like this. This was an especially well thought out and mature piece of work, and for that I commend you.
Your narrator was excellent, he represented the mood exactly as you intended it to be.
Your animation and illustration was done brilliantly, in my opinion. This obviously wasn't you using animation as a way to improve your skills solely, this was you using animation to prove a point. There is something truly mature and admirable about that.
Your statements, however pretty general, are presented really well. There were so many small artistic touches you used to make the world seem dreary, the sound design, the lack of colour, the luminosity of the phones in contrast-- it just all seemed to work.
My favourite part of this was that subtle comparison you made between the two at the end between the junkie and the iPhone user. That subtley shows great respect for your audience, which is another reason I honestly think this is a profondly meaningful and mature animation.
I can tell you presented exactly as you intended, well done!