It's garbage. Utter claptrap garbage.
The author (a strong iPhone proponent, as an aside) is holding the iPhone as a model of openness (open from carrier control at least) which is absolutely perverse. The iPhone is very tightly controlled by Apple (they just finished patenting how they'll brick your rooted device), and Apple's control has a strong input from the carriers, where in the US your choice is limited to one.
Why can't you use facetime on 3G? Why can't you tether for free? Why can't you use Google Voice without essentially using a roundabout? and on, and on, and on.