I've tried Mobiola xPlayer Lite v 1.9, and a couple of others. So far, the BB Media Player is the easiest to use with my rather large file database (over 900 MP3 and rising). I am trying to talk a friend into making a media player that is just as easy to use as the BB stock player, but more DJ useful. She writes programs in JAVA already.
If anyone comes up with the real deal I would be interested in what it is.