This paper describes the present information and communication technology (ICT) market in Japan and introduces some key policy issues currently impacting on the evolving broadband, mobile, Internet and next generation network market, and other issues likely to impact them in future. The paper argues that there is an implicit guiding principle behind several policy initiatives on these issues that might well be described as being based on the conceptual framework of 'Network Neutrality'. The paper further identifies some new policy issues, such as mobile content regulation, interconnection of the NGN and the Internet (IPv6), the introduction of Internationalised Domain Name (IDN) country code Top-Level Domain (ccTLD), and depletion of IPv4 a...