OggPlay is an audio player for smartphones. OggPlay was initially written for SonyEriccson P800 and then released under the GPL by Leif H. Wilden. In a true open source project, OggPlay has been since ported to several Symbian phones. OggPlay project is hosted in Sourceforge. Main features of OggPlay: • Plays .ogg audio files • Detects and plays audio format supported the phone (MP3, AAC, MP4,M4A) • Skins (you can make your own, or use already made ones) • User defined hotkeys • Autoplay Oggplay is able to use standard Symbian MMF plugins. MMF (Multimedia Framework) is a feature of Symbian Operating System (SOS) that allows (among other things) 3rd parties to use audio decoder plugins. With MMF, Oggplay can use the phone built-in audio decoders (MP3, AAC, MP4), as well as decoders installed by users. The MMF comes bundled together with the SOS 7.0S and above, in the phone firmware, and can't be installed in phones afterwards. Since Oggplay is able to both built-in and downloadable plugins, the file formats supported by Oggplay depends a lot on the phone OggPlay is running on.