This article refers to the current price feud between two of America's largest mobile phone providers, T-Mobile and AT&T. Having earlier employed aggressive tactics to try to gain consumers from AT&T, T-Mobile recently suffered a set back as a result of a counter-move by AT&T, who offered monetary compensation for those consumers switching from T-Mobile. As a result of the apparent price war, Wall Street has become increasingly concerned by the prospect of a dramatic loss of profits in the industry, as both firms may eventually settle at the so called Nash Equilibrium point.