I think this game will be a huge success with the younger Wii owners. After all, wasn't the release of Pokemon Channel in December of 2003? It's been six years since a new console Pokemon game has been aimed at younger children. Many of those children may find the main DS games too confusing yet to play. I know a few parents that love the Wii Shop Channel, and they'll buy almost anything that's relatively cheap and child-oriented for their little ones. This game could even create new, younger Pokemon fans out of those who haven't discovered it yet.
I'm not saying that it's for children only, either. In fact, I'm probably going to purchase it when it comes out. The game shows promise...it could really turn out to not be that bad.