Shaw Communications is beginning trials of its WiFi Network, announced in September. Beginning today, customers will be able to try out the service at a limited number of locations, in advance of Shaw's official launch next spring. Subs in Vancouver, Calgary and Edmonton can trial the service at a variety of locations, including malls, restaurants and fitness facilities. Shaw plans to add hundreds of access points in the coming months, with thousands of locations being activated across the Shaw footprint in the next three years.