In PCGamer 211 (UK), there is a massive feature on Fallout New Vegas, which I haven't fully read yet, but, it is mentioned that is should be released in Autumn this year.

Link me, if you could?

I can't find the article on their website, but there is a link to the tailer and some info about the release date.
http://www.computerandvideogames.com/article.php?id=233732&site=cvg

Yeah, this has already been well discussed in other threads and is stated at the end of the teaser trailer - Fall 2010.