Does such exist? As an ex iPod user I'd really fancy having either my own playlists which I could create & handle on my PC, or alternatively playing the files on the phone via picking a folder and it would play all files in subfolders. My media collection is quite extensive and seen alot of trouble to tag it all correctly, and picking one genre and artist just won't cut it. With the capacity of N900 being quite good I bet I'm not alone with the problem.

edit: MediaBox is the solution.