For those curious, those names came about because there is a Longhorn Bar in the Whistler-Blackcomb ski resort in British Columbia.
Here is Wikipedia's list of Microsoft codenames: http://en.wikipedia.org/wiki/List_of_Microsoft_codenames. Strangely, the article lists Metro as the Windows 7 UI. Also, the XML Paper Specification (XPS) had previously also used the Metro codename.
Here is Wikipedia's list of Microsoft codenames: http://en.wikipedia.org/wiki/List_of_Microsoft_codenames. Strangely, the article lists Metro as the Windows 7 UI. Also, the XML Paper Specification (XPS) had previously also used the Metro codename.