I’m just helping somebody find temporary wireless internet access (ideally free wireless in London), and I remembered The Cloud. Their pricing is a bit odd: for Pay as you go access, the price if £6.99 for 3 hours or £9.99 for 24 hours, or you can go for their subscription wireless access, it’s £6.99 for a whole month.
There must be a snag there – who would pay for 24 hours access, when it’s cheaper to get 30 days?