Helsinki plans an integrated system of public transit that would make it obsolete to have a car.

This would be a tremendous advance, except that they plan to build in total surveillance as part of the fine print. Every portable phone is a tracking device, and if you have to pay through one, that means identifying yourself to the system. That would be a big step backwards for privacy.

If we don't want to live in a world of total surveillance, we must reject and oppose every new system that collects data about all users. We must insist on designing systems so that they do not track or identify people. Helsinki's transit system should provides ways to call for a ride by calling a number, and allow paying cash.

See http://gnu.org/philosophy/surveillance-vs-democracy.html for more explanation, and practical recommendations.