I’ve finished the initial version of Mii Transfer. It’s still pretty ugly, but functional. You can save a Mii from your remote to a binary .mii file which is compatible with sites such as miieditor.com or miiplaza.net.
It’s available for download at http://www.mcdevzone.com/files/MiiTransferX.tgz.
The framework in your app is only Intel compatible. I had to rebuild it for my Powerbook.
Great work!
One nice (albeit nerdy) feature might be the ability to automatically replace your Address Book photo with your Mii