one year ago youtube launched the youtube remixer. It was available at http://www.youtube.com/ytremixer that site is now a profile.

What happened to it?

They probably got rid of it, it's not even in the TestTube anymore.
http://www.youtube.com/testtube
http://web.archive.org/web/20070826185607/http://www.youtube.com/testtube
Probably there were some sort of deals between Adobe & YouTube but the terms expired after a year.

YouTube Remixer launched june 16 2007
http://www.techcrunch.com/2007/06/16/youtube-remixer-edit-videos-online-at-youtube/

The user yTremixeR joined June 14, 2007. Is the user a Google official living in Djibouti?

"yTremixeR
Joined: June 14, 2007
Last Sign In: 1 year ago
Videos Watched: 0
Subscribers: 1
Channel Views: 69,973
Age: 28
Country: Djibouti"
http://www.youtube.com/ytremixer

No, Mike, he's just an ordinary user. You can create accounts using usernames ytremixer, community etc. even if there's already a YouTube web page that uses your name. Some examples:

http://www.youtube.com/user/community vs http://www.youtube.com/community
http://www.youtube.com/user/groups vs http://www.youtube.com/groups
http://www.youtube.com/user/inbox vs http://www.youtube.com/inbox

But the url for both the private user and official YouTube Remixer service was/is http://youtube.com/ytremixer
Can Youtube retract a user name for its own purpose?

Most likely, youtube.com/name redirects to youtube.com/user/name unless there's a YouTube page that uses "name", like YouTube Inbox.

You don't think that Remixer has been superseded by YouTube Video Annotations?
http://www.youtube.com/t/annotations_about

I think Annotations is a more interesting product, because it lets you make interactive "multiple-path" videos. The existing interactive videos are rather clunky, e.g. the Interactive Magician
http://www.youtube.com/watch?v=ELcT5tLVtN0&feature=iv
but I think there's great potential here when it's made more seamless.

(The interactive features don't seem to work when the video is played on this page.)

Hi,

MTV has it on now: http://remix.mtv.com/contest8.aspx and www.photobucket.com uses the tool. It's based on Adobe Premiere Express. I'd've loved to see it on YouTube though.

Michael