A decade ago, there used to be two categories of humans. The Nokia lovers, and the Sony Ericsson lovers. I was unabashedly the latter, and a small piece of me died when the Walkman series came to an end, following Sony’s acquisition of Sony Ericsson. Designer David Bull, however, didn’t take things sitting down. Here’s a conceptual Walkman Phone, designed to fit into today’s market with just the perfect amount of Walkman’s classic, resplendent style. *Insert tear-jerking nost