Hello, my name is Seungwon Lee, I work at LINE as an Android developer. This post is about our visit to Google I/O 2017 held in Mountain View, USA from May 17th to 19th. Google I/O, started in 2008, is an annual developer-oriented conference. Along with Apple’s WWDC, Google I/O is by far one of the largest events for software developers worldwide. The “I“and “O“in the conference name stand for “Input and Output” and also for “Innovation in the Open”. This conference is renowned for Google announcing its future visions. For me, the conference was a chance to learn the changes in the new Android OS that would immediately affect LINE, and to glance at Google’s latest achievements and future plans for web technologies, cloud services and VR (Virtual Reality).