Daring Fireball: Tiger Details
"Tiger includes several new keyboard layouts, including one for Canadian English. It seems to be identical to the U.S. keyboard layout, the only difference being that when you turn on the input menu (by way of the Input Menu section of the International panel in System Preferences), you get a Canadian flag icon instead of the U.S. stars and stripes. (Thanks to Andrew Dunning.)"
Yay! Now I can turn on the Input Menu. No offense, but I couldn't stand having the US flag on my menu bar, as many Americans wouldn't want a Canadian or UK flag in their flag's place just because the we speak English too.