Japan’s biggest home-grown video sharing service and community Nico Nico Douga has gone HTML5, at least on Safari for the iPhone and iPod touch. While the main site still uses Flash on the PC to display videos, iOS users can now view clips directly on their browser.
In other words, it’s not needed to download the Nico Nico iOS app anymore. iOS 4 or above is required, but for some reason, iOS5 users have to live with a huge drawback: currently, comments (that are usually superimposed on top of the videos) aren’t visible when a clip is played.
Screenshots (Nico Nico Douga on Safari for iPhone with iOS5):