This will only be of interest to Southern California users. There was a fantastic app In the App Store called SigAlert, which gave real-time traffic updates in and around the entire region. For some reason it has been removed from the store and I'd like to know why. I have it installed on some of my devices and it still works but it's not available for install anymore, and that's a shame because it was a very helpful app. And I can't find anything on the developer. So does anyone know what happened?