what about visualisation?
resizing, the feature that minimizes winamp components just like mirc's right click on window titlebar (I don't know the word ;b), the grafic equalizer, how can you do the amplifier (I don't mean the equaliser), audio cd playing, the easy move and dock functions,
that will take months to code, if possible
everyone has it's own opinion I guess, but as far as music players are concerned, all i need is /run winamp [/add] file and a way to get the currently playing song without dll