That's their legal dev-kit. Go to Apply - wii and there they have full details for how to become developer of wii and their legal wii kit. There are two options, one for -- currently working with an authorized Wii licensee, and the second for -- If you are NOT working with an authorized Wii licensee.

Hope that helps you a lot. And I am really looking forward to hearing any news about your current adventure. You are welcome to MSN me on msl_manni@hotmail.com for any thing you want to know. I will be glad to help you.