WSJ reported that game theory is becoming more and more popular in MBA programs, especially with economists getting Nobels for their contribution to the field. Read the story here.
Indeed, there are several excellent game theory texts that have B-school students as their target customers. The most popular one is doubtless Thinking Strategically written by A. Dixit and Barry Nalebuff. Other important ones include Co-Opetition by Adam Brandenburger and Barry Nalebuff and Games, Strategies and Managers by John McMillan.