File manager (sans renaming, but you can use COMI to do that) .gxb and .fxe loading (and .gxe? not sure there), viewing of .jpg and .gif files, as well as .html, .htm, and .txt as plain text, and playing MP3s (copmplete with winamp equaliser settings). Its a very very nice util.
Its a shame the guy who was working on it stopped, but that's what happens when people get flamed (at least as I remember it).