Bemused is an open source server for Windows and Linux that allows you to control and manage your Winamp or Windows Media Player music collection or a Powerpoint presentation from a Sony Ericsson UIQ mobile device using Bluetooth, Infra-red, USB or GPRS/3G Internet. For non-UIQ Sony Ericsson mobile devices such as W300, T650, S500, Z750, K810, K800, W850, W900 or any other Walkman series, you can download JAM SE details of which are mentioned below.

Key features of Bemused protocol include:

-Browse your music collection on your phone
-Play files in any format supported by Winamp - including MP3s, CDs, MIDIs, etc.
-Control Winamp versions 2, 3 and 5, Windows Media Player and PowerPoint Viewer
-Navigation Control: Pause, stop, rewind, fast-forward etc.
-Add songs to the playlist and use shuffle and repeat
-Browse and select songs in your playlist
-Download songs to your phone (supported formats: WAV and MIDI; plus MP3 for UIQ)

You can download the latest version of Bemused for Sony Ericsson UIQ 2 and 3 including the server component here.

For non-UIQ based Sony Ericsson mobile devices such as JAM SE such as W300, T650, S500, Z750, K810, K800, W850 and W900, you can download JAM SE, another freeware based on the Bemused protocol.