"JR Central aims to begin commercial maglev service between Tokyo and Nagoya in the year 2025 with the full track between Tokyo and Osaka finalized in 2045." http://en.m.wikipedia.org/wiki/Maglev#Japan
But the article wasn't about "maglev trains" in general, it was about a specific one. And so the comparison is moot except to compare how each system has approached the challenges of building and/or productizing such fast trains.
When I read your comments I felt like it was a Chinese boast/Japanese putdown not an actual comment. As I understand it there is some animosity between Japan and China, and with that understanding it felt to me that your comments were simply being mean rather than adding to the conversation.
So given that you have first hand experience with the Shanghai train, do you have any insight into what has kept it from being deployed into a production capacity? Articles like this one in Time (http://content.time.com/time/travel/cityguide/article/0,3148...) portray it as a sort of entertainment ride, like a roller coaster might be in an amusement park.
http://en.m.wikipedia.org/wiki/Shanghai_Maglev_Train
My understanding is that it was suppose to terminate closer to the center but people were afraid of the magnetic fields and protested.