Bowers & Wilkins has seriously been ramping up its consumer audio game in the past few years -- notably, with products like its Zeppelin speaker systems for iDevices and its MM-1 desktop speakers. While speakers seem like an obvious choice for a company famous for HiFi systems, you probably wouldn't have thought of B&W for your next set of iPhone-compatible headphones -- that is, until its $300 P5 mobile HiFi supra-aural 'phones released last year. This year, the company has taken
