Hate when your phone rings when you are flying down the freeway in heavy traffic? Then Not Now is the application for you. Just launch Not Now, set the speed at which you want privacy and Not Now will do the rest. If you are driving at your set speed, or faster, Not Now will mute the ringer on your phone. If a text message arrives, Not Now not only mutes the ringer, but sends a text message to the sender telling them you are currently driving. Not Now works best in areas with good GPS satellite visibility.