Adobe Flash Player
Steve Jobs also claimed that a large percentage of the video on the Internet is supported on iOS, since many popular video sharing websites such as YouTube have published video content in an HTML5 compatible format, enabling videos to playback in mobile web browsers even without Flash Player.
Nintendo Network
The browser itself supports HTML, CSS, JavaScript, and some HTML5 elements but does not support Flash, video, and music files. It can also show 3D image files with the .MPO file extension on the upper screen and will allow the user to save the image to his or her SD card; this can also be done with 2D JPEG files. Additionally, the browser supports file uploads on forms, limiting them to JPEG and MPO images in the system's photo gallery.