Hands-on review: Sony Smart B-Trainer

If there's something runners like, it's more toys to play with when pootling around the streets and fields of the world.With that in mind, the new Sony Smart B Trainer prototype (B stands for Beat, apparently) offers a lot of new things to play with - well, it offers the same things most will be used to, but packages them in a more interesting way.The B Trainer is a headset that looks a lot like the W Series, Sony's head-based Walkman that did nothing more than shoving music into your skull. The