Traffic sucks and especially when you need to get to your next appointment on time. Delphi have created a real time traffic kit which works on their Nav200 system. Services that I have heard about in the past from TomTom for example, require a subscription. With the Delphi traffic kit you have a one time cost to activate it and then no additional fees. This isnt bad and well worth looking in to if you are more of a casual GPS user.
Via: Fosfor