I want to see, or should I say hear this in the next version of the PSP As mobile phones move closer to being a ubiquitous, all-in-one media player, audio is becoming ever more important. But how good can that sound be from such a small device? The sound of a buzzing bee jumps from left to right before disappearing around the back of my head. The surround sound demo is unremarkable when heard on a multi-speaker home cinema system but startling when emerging from a small mobile phone. British firm Sonaptic is one of a number of companies to have developed 3D audio technology that emerges from stereo speakers. Firms AM3D and SRS both offer stereo-widening technology for mobile phones. But Sonaptic's managing director David Monteith says his firm is the only company to offer positional 3D audio on a mobile. Rest of the story here.