I have written a utility to generate playlists for my RockBox.
Uses VBScript it creates a set of subfolders containing playlists. The new folders are alphbetically sorted and contain the list of all the tracks (sorted by album/artist etc.) in a folder.
example:
Folder A contains all the PLAYLISTS that start with the letter A
ABBA
ABBA Greatests Hits
ACDC
etc.
Anyone interested? where do I post? How do I release the Rockbo community?