let us search for channels, add a playlist main tab, nico nico scrolling comments add a playlist tab between videos and channels on the main tab, and make us able to search for channels on the bar. Also add a counter for new users and nico nico video scrolling comments

HD Embeds Embedded videos seem to always force SD quality, would be cool to have either embed options or just default to hd.

Audio Videos Instead of having to upload a video with music, why not just allow the user to upload a sound file (like an mp3) and a title image to go with it? It would allow for much higher quality music videos and they might be smaller too.

annotations yes annotations please

Subtitles add subtitles?