Username or EmailPassword
It's more like a proof of concept or mock-up, I have trouble believing some of those things, such as taking out the task bar from a PC desktop.
And FWIW, I think the applications menu first came out in SLED 10, in 2006, whereas Vista was launched in 2007. Not that it matters, since after a brief period when all distros rushed to include it on their desktops the trend died out. I'm not sure it's seen much use, on Gnome anyway. The standard menu bar applet (Applications, Places, System) seems to appeal much more to people, for some reason.