I had this same question awhile ago and it took a little while to find the answer. There is no mp3 playback support in the 68k api. But, if you plan to use a specific device, say the treo 650, there's a separate API that you can plug into that has an mp3 encoder/decoder with some great sample code.
http://developers.palm.com/pe/forums/displaypost.jsp?postID=10142841 Also, be aware that mp3 encode/decode is not implemented in the treo650 simulator. It'd be nice if they told people that somewhere. -- For information on using the PalmSource Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
