With all the 'bad people' out there and how smartphones solve Human problems (wireless communication, entertainment values, etc.), one would hope that an offering would reach Windows Phone 7 to combat sex offenders. Well, it has.
An app called Sex Offenders Search is slightly like Bronseal's slogan; "It does exactly what it says on the tin" (if you don't know Bronseal), where it displays to the user all registered sex offenders in and around your area (using GPS and maps). The app allows you to select an offender and view a photo, name, address and offenses.
Sex Offenders Search is currently only available in the US, bit of a pain for us Europeans, and can be found on the Marketplace for $1.99 here.
Source: WP7 Connect