starbucks internet access canada

How much money is using the starbucks wireless internet access in Vancouver?
I understand you purchase a 5$ wireless internet access card and it gives 2 hours free. I am travelling in Canada and won’t have service with a canadian ISP. Is the 5$ wireless card ONLY good for 2 hours and then expires (you pay every 2 hours) or is it good for 1 month of internet access at starbucks for a limit of 2 hours a day?
They are advertising 2 hours free per day even without a card – all you need is a starbucks.com username/password. They don’t say how much it costs for additional time.
Don’t limit yourself to Starbucks, though. See the other two links for places offering free wi-fi in Vancouver.