pssst... just search next time for your topic terms - 'google canada' (and no, that's not saying you did anything wrong). anyhow, you can go to the following link to remove the country detection. when visiting google.com, it detects your location based on your IP address and routes you to the appropriate server (sometimes this helps to speed up routing requests and lag time). in this case, your IP is detected as Canada, as RIM's HQs are located there and their IP blocks for their proxy addresses are registered to their company in Canada (although i don't believe the proxies are physically located there, but maybe so).
www.google.com/ncr