Well due to recent sightings on estarland & ebgames.com I have decided to revise this thread. Slated for a 2/16/06 release. This really needs to come out, I can't see them just canning something like this that would sell well... Anyways here are the links, post more if you have more info.
http://www.ebgames.com/ebx/product/241085.asp
http://www.estarland.com/GameBoyAdv....uct.16571.html
-Chris