... what do you call it?

I was talking to my Aussie/Ozzie/Aushtryan roommate last night (although we do not actually share a room, 'housemate' just hasn't caught on - but that could be a whole nother thread), and told her one of my fears about becoming a lawyer was having to wear pumps and carry a briefcase. Apparently, Down-Under, pumps are called court shoes (which sounds to me like what you wear to play squash). Is pumps a Canadianism? Or a North Americanism? What do other people call a simple, tongue-less, high-heeled shoe, with closed or open toe? Just curious.