Sony’s Walkman portable media player outsold the iPod in Japan last week, the first time in over two years a competing player has grabbed the top spot, according to new data from research firm BNC. Bloomberg reports that Sony’s share of the market for the week ending August 30 was 43%, just inching out Apple, which accounted for 42.1%. BNC notes that the iPhone cannibalized some iPod sales, but isn’t included in the survey because…
