The iPhone Effect

How the iPhone Led to the Sale of T-Mobile USA
“The iPhone effect cannot be underestimated in this decision,” said Theo Kitz, an analyst at Merck Finck, a private bank in Munich. “Without being able to sell the iPhone, T-Mobile was in an unsustainable position and T-Mobile USA became a problem child.”


After Apple's iPhone became the world's leading smartphone, not being able to sell the iPhone became a major problem for T-Mobile. And now, its competitive position has further worsened because starting this February, Verizon has started to sell iPhones too. Is this really the 'iPhone effect'?