Research In Motion (NASDAQ:RIMM) introduced its newest BlackBerry on Monday. What will the device mean for investors, and what will it mean for competitors such as Apple (NASDAQ:AAPL) and Nokia (NYSE:NOK)? Will Marvel's (NYSE:MVL) Iron Man get run off the road by Speed Racer? What will Berkshire Hathaway (NYSE:BRK-A) (NYSE:BRK-B) CEO Warren Buffett buy next? In this installment of "Fool Video," Online Managing Editor LouAnn DiCosmo talks about some stories on the Fool radar.
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