Two days ago we wrote about Urban Airship grounding SimpleGeo APIs. While one API was being taken over by another company, it left SimpleGeo's innovative flagship geo storage product stranded. Another company has quickly come forward to pick up the slack. Geoloqi created a SimpleGeo importer that will move storage from one platform to the other, where places can then be queried by the Geoloqi API.
If you're looking for a traffic data web service, you probably have not been able to find one for free. Now mapping pioneer MapQuest is beta testing a service it says provides "real time traffic information related to incidents, markets and flow."