I used it to make an instant mix and generated a 25 song mix rather quickly. The problem is that it selected the songs from the mp3 files I have in the ringtone folder. They are only 40 second clips.
I tried it a few times and it always selects files that are on the phone rather than from my Motocast library. Problem is I don't have any full song files on the phone. I do have about 100 mp3 ringtone clips.
I looked for a way to make Motocast only search my music library but could not find one.