1. A cellular telephone computing device that is capable of communicating, when the cellular telephone computing device is in operation, with a remote server system via at least one wireless network, the server system comprising database storage, the cellular telephone computing device comprising: a touch screen-based user interface; a display; at least one camera; at least one central processing unit that includes multiple cores; semiconductor memory that includes flash memory, the semiconductor memory being capable of storing, at least in part, contacts information and client application instructions, the client application instructions being capable of being executed, at least in part, by the at least one central processing unit, the client application instructions when executed, at least in part, by the at least one central processing unit resulting in the cellular telephone computing device being capable of performing operations comprising: displaying, via the display, at least one visual notification to a user of the cellular telephone computing device of an incoming call at the cellular telephone computing device, the incoming call being associated with a caller telephone number that is absent from the contacts information; displaying, via the display, at least one other visual notification to the user, the at least one other visual notification being to notify the user that the incoming call possibly is a scam call, the at least one other visual notification being generated based, at least in part, upon reputation data stored, at least in part, in the database storage and to be associated, at least in part, with the telephone number; receiving, via the touch screen-based user interface, user input that is capable of being in response, at least in part, to the incoming call, the user input being capable of being used to update, at least in part, the reputation data associated, at least in part, with the telephone number; wherein: the reputation data is capable of being based, at least in part, upon governmental and other users' report information reporting, at least in part, the telephone number as being associated, at least in part, with scam activity; the cellular telephone computing device is capable, when the cellular telephone computing device is in the operation, of sensing biometric data and global positioning system-based location data; the reputation data is based, at least in part, upon reverse telephone number lookup information, country calling code information, area code information, and whether the telephone number is associated with a commercial line or residential line.