Though a number of competing mobile “musicphones” have offered Bluetooth wireless stereo audio streaming for years, the 2007 iPhone conspicuously left that feature out, as did the 2008 iPhone 3G—surprising given Apple’s music-heavy marketing focus, and both iPhones’ inclusion of Bluetooth 2.0 hardware that could be used for monaural wireless handsfree phone calls. Some thought the company was planning its own proprietary…
