This document provides a summary of mixi Mobile, Japan's most popular social networking service on mobile platforms. It discusses how mixi has successfully transitioned from being a PC-based service to having 70% of its traffic come from mobile, generating $15.8 million in quarterly mobile revenue. The document reviews mixi Mobile's features, business model, strategic evolution and growth on mobile over the past two years. It aims to help social networks, mobile companies, advertisers and others understand mixi Mobile's success in order to improve their own mobile strategies.