There is a whole category of apps like this for the BlackBerry -- apps that you deliberately install on a phone to spy on someone else who is using it. It is ca

There is a whole category of apps like this for the BlackBerry -- apps that you deliberately install on a phone to spy on someone else who is using it. It is categorically different from conventional spyware because it doesn't misrepresent itself or do anything malicious to the user who installs it. If users are infiltrating each other's phones and spying on each other, that's between them. You may find it sleazy, but the developer isn't spying on anyone.