Abstract: The present disclosure provides a method for sharing a file when multiple versions exist. Differences between the different versions of a file (e.g., attachment) are determined and only the determined differences are communicated. The complete file (e.g., attachment) can be recreated on user devices using a previous version of the file (e.g., attachment) and the transmitted differences, and the complete file (e.g., attachment) can be displayed on user devices so that the operation of the method is not visible to device users.

Abstract: A mobile wireless communications device may include a processor, a modulator coupled downstream from the processor, a power amplifier coupled downstream from the modulator and having a control voltage input, an antenna coupled downstream from the power amplifier, and a feedback path coupled between the antenna and the processor. The processor may be coupled to the control voltage input of the power amplifier, and may be configured to determine an adjacent channel leakage value based upon the feedback path and to selectively set a control voltage for the power amplifier based upon the adjacent channel leakage value.