So, I decided to install the Spanish language pack for Vista to see the OS from a different point of view.  All I have to say is that definitely different.

The thing that first took me by surprized is the Recycle Bin (ó en Español Papelera de reciclaje):

Recycle Bin in Spanish

Also, check out the Windows Start Menu:

Windows Start Menu in Spanish

Notice in the start menu how some programs are configured for internationalization while others are not.

Yeah, I know, I'm too much of a geek... ;-)