Abstract: Apparatus and methods include the distribution of a plurality of content, at least one of which is tagged with descriptive metadata. Further, the apparatus and methods include selecting content from the plurality of content based on a match between a personalized content preference descriptor stored on the device and the tagged content. Thus, the selected content represents content likely to be applicable or relevant, and/or of interest, to the user associated with the personalized content preference descriptor.

Abstract: A system uses conventional text messaging capabilities of cellular telephone systems to embed one or more call-back telephone numbers. A start delimiter is used to separate a text data portion corresponding to the call-back telephone number from the text message. A termination delimiter may be used to indicate the end of the text data portion corresponding to the call-back telephone number. Multiple text data portions, corresponding to multiple call-back telephone numbers, may be inserted using multiple start delimiters and termination delimiters. A text parser in the cellular telephone searches the text message for the start delimiter and extracts the text data portion corresponding to the call-back telephone number. The cellular telephone user selects a desired call-back telephone number, which may be placed in a dialing queue for simplified communications between the cellular telephone and a destination corresponding to the selected call-back telephone number.

Abstract: A system for user-programming of system parameters of a cellular telephone. Data values for the system parameters are stored in a nonvolatile memory within the cellular telephone. A password storage area stores one or more predetermined passwords. After purchasing the telephone, the end-user calls a predetermined telephone number and receives one of the predetermined passwords. The user enables a programming mode and enters the predetermined password using the cellular telephone keypad. If the user-entered password matches the stored predetermined password, the cellular telephone allows user access to at least a portion of the system parameters in the nonvolatile memory. A counter tracks the number of user-programming attempts and terminates the programming after either a predetermined number of failures or successful programming of all the desired system parameter values.