It's already toyed around with offering free WiFi at a few of its locations, but Tim Hortons has now finally committed to making the service available at most of its restaurants across Canada. That's being done through a partnership with Bell Canada, which Tim Hortons says was selected after a "rigorous six-month testing process," and it looks like the WiFi has already been turned on at quite a few of its locations (you can search for those near you using the store locator on its website). All told, the company expects to roll the service out to more than 90 percent of its restaurants, or over 2,000 locations, by this September -- a nu