iTunes stores playlists in it owns iTunes Library playlist format which unfortunaltely cannot be used in Windows Media Player, WinAmp or even your Symbian S60 mobile device with RealPlayer witout recreating it all over again in the respective media players. iTunes to M3U converter is a free software that allows you to do just that. This application also works with the new iTunes 7.0 playlists.
You can even upload your existing iTunes playlist and convert playlists online here without downloading the software.

Homepage- http://chimpen.com/itunes2m3u/convert.php
Download link- http://chimpen.com/SonglistToM3U.exe