Just came across a research paper from May 2011, thanks to Joe Sylve for the work.
“.. overview of a new technique that could be used for phishing web-based email services such as Google’s Gmail and Yahoo’s Mail ..”
Phishing Web-Based Email Services with HTML 5
Department of Computer Science, University of New Orleans, 11 May 2011
http://dl.dropbox.com/u/17627038/papers/html5phishing.pdf – last access 22 September 2011 – (Full article)