This document summarizes Naruto TAKAHASHI's experience at Linuxcon Japan 2013. The conference had over 700 attendees and featured talks on Linux, Tizen, and HTML5. A highlight was Linus Torvalds speaking and Naruto taking a photo with him. Tizen was also discussed over three days including an overview, development practices, and a hackathon. Havok demonstrated their game framework for platforms including Tizen using OpenGL ES.