It won't run AmigaDE unless it is rewritten AFAIK. (I have a Clie myself, just exchanged my Palm a few weeks ago)
AmigaOS AFAIR requires 640x256 as the minimum resolution, so simply you have to wait just a little longer :-) (There are other issues however, memory handling of the palm, the screen, etc., the Palms/Clies are a slightly different in architecture than the original Amigas)
