While what it does support is cool, what it does not support is more worrying. I doubt the browser will be a high priority for them, so the lack of audio support and web sockets will likely persist for longer than most PC browsers.
A shame that they implemented a broken localStorage.<p>Interesting that it is no longer Opera, but WebKit under the hood according to <a href="http://en.wikipedia.org/wiki/Wii_U_Internet_Browser" rel="nofollow">http://en.wikipedia.org/wiki/Wii_U_Internet_Browser</a>