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):
Also, check out the Windows Start Menu:
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... ;-)