frontend:
- infos about song being played:
  - song attributes (channels, frequency, bitrate);
- ability to modify song attributes (artist, genre, ...);

formats:
- ability to play HTTP streams;

players:
- implement a real GNUstep output bundle using gnustep_sndd;
- arts output bundle;
- CD writing output bundle;
- this thread thing needs to be optimized;

playlist:
- write a full-featured playlist manager;

translations:
- write translations;

documentation:
- write a user manual;
- a dev. manual (plugins) ?;

maybe:
- scripting interface?
