Hooray for the Canadians. The Samsung Galaxy Nexus up there running on Bell Mobility should see an update hit their device now or very shortly. Granted, it is not the newest build that many other devices are on, 4.0.3, but it is a start right? It still brings up other question about the five various versions of ICS that are running in the wild though. Last we heard 4.0.3 was supposed to be the new standard that all ICS device were to be started with. There are also rumors of 4.0.4 and 4.05 already cruising around.
Be on the look out for your Gnex to prompt you for the update or you can try to prompt it by hitting Menu > System Settings > About Phone > System Updates. Happy updating, and hopefully you get 4.0.3 soon as well.