I think the whole idea of the Wii Browser is good, but I dont think its going to live up to everyones expectations. Its not really a fast web experience, and you cant even type at a reasonable speed e.g typing passwords whilst other people are in the room is almost impossible for them to not see. And worst of all, its not free. If it was free then at least people wouldnt be as disappointed after they have played with it for 5 minutes.
I think the only way Nintendo could win me over about this issue is for them to release a Wii Keyboard (a mouse would be good too but I dont think its needed as much as the keyboard).