Its called iTraffic@SG and its not free, but I think for what you get, its worth the US$0.99 you pay for it. I was originally using Traffic@SG which is free and covers most areas including travel time estimation, and ERP rates. However with iTraffic@SG, you can find out where thereís congestion and even roadworks. The latest traffic news is also uploaded onto the App and even camera images from the expressways have been integrated.
Even the number of parking lots can be found for most buildings in town especially which eases your search for a parking space, carpark rates are included as well. The weather outlook isn't that great big a deal but its useful to know I guess.
This App is more like a combination of 3 Apps which I used to have into 1 and Iíd recommend this to all readers here who have an Iphone or and Ipad with 3G enabled.
Hereís the link to the App: http://itunes.apple....d431809862?mt=8