HoFo user hkalltheway picked up a Nokia Lumia 920 on Rogers yesterday and noticed it has pentaband HSPA + quadband LTE. Other users are also reporting that the initial batch from Rogers is unlocked. That means you can use it Bell/TELUS/Rogers/Mobilicity/Wind.
I just picked up the Lumia 920 a while ago...
Here are some interesting pics from the box AND manual, indicating this should work on Wind if unlocked!
It includes WCDMA 1700/2100
(I have modified and removed IMEI number for security)