Here is some themes and midifiles for the Sony Ericsson Z600 and T610 (Might work on others to).
Currently there is three themes, one Commodore 64, a Java Metal (Swing) and a Amiga OS 1.3 theme.
The Java Metal theme.
The Commodore 64 theme.
The Amiga OS 1.3 theme.
And here is some midi files made by Karsten Obarski on Soundtracker
converted to midi by me. The songs is Amegas, Bluesong, Future Tank.
More to come :-) (Hopefully I can get a proffesional musician to polish
them, Hi! Burt!)