Gave your app a test..
Took about 20 seconds to scan a folder of 15 files of mp3s. I noticed your making an xml list of them.. That in turn means its not very flexible when you add/remove mp3s as you would have to rescan the files everytime?
When you hit next, instead of showing "next", flash the song name.
I cant seem to jump to playlist when the vis is on, i have to turn it off before i can go back to it.
I didnt give the video player a try yet. Didnt see a directory i could specify for the video folder in the conf file? Does it use the same folder as mp3s? Because I did put an avi in there, didnt seem to find it.