I don't like even the new version. What does that mean "One more thing that makes an iPhone an iPhone"? The aim here is to highlight the iconic nature of the iPhone. To give emphasis on the fact that the term iPhone stands by itself above the limits of a device as a cult symbol.
They should say "One more thing that makes an iPhone *the* iPhone". not *an* iPhone.
In other words, one more thing that elevates the iPhone from the status of just a device, to a single reference point, the standard, the touchstone, the criterion.. the iPhone as a symbol. I don't know if anyone else agrees with that. Thumbs up if you do..