Are my saves transferable to another Wii?
Yes. Skyward Sword games saves can be copied to an SD card. They take up one block of memory.
Keep in mind that that game saves are locked to your region. From Wii Save:
We're nearly positive you can't use foreign saves on your Wii. We're still looking in to a way to do it, but so far, it's not looking good. You'll most likely have to stick to your own region when swapping saves.
As long as the Wii you use is in the same region as your Wii at home, you should be fine.
I've downloaded a couple of Wii save files from that site, and never had a problem. I've never tried to copy between consoles, though. When copying saves, you have to delete any existing save files from the destination before the Wii will copy anything. It won't overwrite.
Generally save moving/copying is prevented for two reasons:
- The game has an online component that needs to remain "locked" to the Wii it was started on. Mario Kart Wii and SSBB have this requirement.
- The game is a Pokémon game. Moving saves leads to potential copying of saves leads to duplication of Pokémon. Not something they want you to do. (I think they even put locks on the GameCube Pokémon games because of this but I'm not sure.)
Zelda games fit neither of these criteria, so there shouldn't be any reason for them to be save-locked.
It does allow you to copy and move to SD card. Just confirmed. I will attempt to play on another Wii later tonight. I don't see why it wouldn't play though if I can move it. Will be upset if I can't! Haha. Guess I'll be playing Skyrim, MW3, or AC Revolations if it doesn't work.
If you soft-modded your wii and have the Homebrew Channel installed, you can backup ALL of your Miis/Saves using this wii channel, http://wiibrew.org/wiki/SaveGame_Manager_GX Works great!