Apparently I can't even comment on videos without linking my YouTube account to my Google + ... which I never use. And basically this is what happens, for reference.
http://www.youtube.com/watch?v=2SMtKt04QKY#t=5
That's just a rumor. Though there's a pretty good chance that it will happen, I think Emily Rodgers is usually right about her statements.
Is that the same person who said there will be a YouTube app for 3DS?