[quote name='007']I was the one that posted about it.
I didn't have a 'Transfer to DS' button either, so I had to use the button presses. Go into the Mii Maker on the 3DS and choose the Send/Receive option. Choose to connect to the Mii Channel. At this point the 3DS will sit in searching mode until you manually connect the Wii Mii Channel to it.
The button presses work, but I found it to be temperamental. Simply press (NOT press and hold) the buttons in the order it tells you (A, B, 1) and then HOLD the 2 button afterwards. A prompt should pop on your TV that asks if you want to connect to the wireless device to transfer Miis. Should be good to go.
Once it works, there's a box at the top where you drag the Mii you want to send. One at a time, and you HAVE to confirm it on the 3DS before sending another... it's just a little message telling you it showed up, but until you click 'ok' to dismiss the message, no other Mii will actually get sent.
That's it, really. Just keep trying the button presses, it'll work eventually. Easy transfer, too, I got about 15 of my Miis sent over in about 2 minutes. Way, way easier than creating them. Plus, you can edit them with the new 3DS stuff, like the full beard.[/QUOTE]
Yeah, I figured it out shortly after I posted, actually. Tempermental it is... It didn't help that at first I intepreted their directions as pressing and holding A, B, 1, and then 2. I was trying to press them all at the same time, though I swear I tried them in sequence a few times too and it didn't work. But then finally it did

. I guess the reeson they don't have the "Connect to DS" show up right away is that they don't want to confude people who don't have a 3DS. If that was just there all of a sudden, people would be trying to connect up to DS Lites and DSi's and Nintendo would probably be flooded with support calls about that. So, yeah, it is pretty clunky design to have to press all those buttons to make it active, but I see why they did it.
Only problem was that I had forgotten my main Wii's memory got wiped about 2 years ago and in disgust I really haven't played it much since then (after losing non-copyable AC and SSBB saves with 100's of hours on them) so I really didn't have many Miis worth importing anyway. Oh well...