In Canada Apple is only selling unlocked phones (today). In the US Apple is only selling locked phones (today).

http://news.cnet.com/8301-13579_3-575127...-in-u.s-canada/

In the US it seems one might have to wait until October/November. But you're saving $50 over the Canadian prices.

All in all, I consider the iPhone 5 announcement and public reaction somewhat disappointing. Apple's stock is only up around $30 over last week and it hasn't broken $700/share yet.