I heard about an interesting new product for Android, the “ionroad” app is an app you install on your Android phone or tablet. The application uses the camera in the device to analyze the road ahead of your car and tell you if you’re following too closely to the vehicle ahead of you.
For now the application seems to only be available to Android users, but the website (http://www.ionroad.com/) promises to have it available for other smartphones in winter 2011… Which hopefully includes the iPhone.
As an iPhone user, I have not yet been able to test the product, but am very interested in doing so when it comes out. For Android users, the product is currently free and is available through the Android app store.