1) Japan has a mature mobile phone market with over 89% penetration and growth of 4% year-over-year. Mobile phones are the most popular communications device surpassing PCs and landlines. 2) Mobile social networking is growing in popularity in Japan, with the top 3 networks being mixi, mobage town, and Gree. These networks focus on gaming, communications, and avatars/virtual worlds respectively to
![Japan Mobile SNS Study 2010](https://cdn-ak-scissors.b.st-hatena.com/image/square/2dc691a6c5f94c496a472e3a83d8952347899e59/height=288;version=1;width=512/https%3A%2F%2Fcdn.slidesharecdn.com%2Fss_thumbnails%2Fjapanmobilesnsstudy2010-100103092753-phpapp01-thumbnail.jpg%3Fwidth%3D640%26height%3D640%26fit%3Dbounds)