Microsoft's 'Avoid Ghetto' Navigation Patent
 

Microsoft has patented a new pedestrian travel aid which closely resembles present GPS technology, but goes much further. It has been called the 'Avoid Ghetto' patent for its use of database and current information to avoid 'trouble areas' on the walking route. The application will have loads of bells and whistles to guide you to your destination, but the question will be who will need it? As for the "avoid ghetto" bit, Microsoft also indicates that its pedestrian route navigation system could take database information into account when planning one's walking route, which could include weather information, crime statistics, and demographic information.

http://www.hardocp.com/news/2012/01/...tion_ patent/