You still need to be an authorised Nintendo developer. While it sounds great as a marketing bullet point, I can't imagine who is actually going to make use of this - established developers are more likely to use C++ and established middleware, and the average indie just isn't going to be able to afford to rent office space, buy the Wii dev kit, cut a deal with the Unity guys etc etc.
I guess the iPhone support will be a lot more useful due to their being no such barriers to entry.
I guess the iPhone support will be a lot more useful due to their being no such barriers to entry.