I can tell you that the news about ICS being available for update in Canada about a month ago is not true. What I mean is that I haven't received my official Samsung ICS update for my 10.1 7510 yet.
Google is your friend. That said, Samsung's latest is that it should be pushed to the WiFi only devices by the end of July or beginning of August. Carrier backed Tabs are at the mercy of their particular carrier.