Cant see moblie phones running amigaOS, that seems incredibly unlikely, besides, symbian and windowsmoblie seem to have that market pretty much covered atm (although i believe there is a linux based mobile in development)
There was a team porting UAE to symbian UIQ (touchscreen mobiles) but i dont know if it was ever finished or what happend to it, havent heard of it for a while.
There is a thing which allows you to play monkey island and similar games on symbian phones tho.