Messages in a message system are converted from one format to another format in accordance with preferred message formats and/or conditions. Message formats can include text messages, multimedia messages, visual voicemail messages, and/or other audio/visual messages. Based on conditions such as recipient device location or velocity and a preferred message format a message can be converted into an appropriate transmission format and transmitted and/or communicated to the recipient in its appropriate format (e.g., text, multimedia, audio, etc. . . . ).