Has anyone got a GBA game published? If so, can you tell us about it. For example, did you have to contact many publishers, how long did it take to develop the game, etc.?

no joy for me I''m affriad. The area of GBA is so over saturated that publishers are not interest unless you''ve already got the latest film/TV license signed up and a finished product. Just having a finished product, no matter what the quality, means you can''t even get through the door - publishiers have internal teams developing games for which they already have the product rights - ie. no hope for indie developers.