Got mine today.
Kind of annoyed at the transfer process. I was under the assumption that I could just do it at Gamestop, wasn't the case.
Had to buy the XL outright, go home, do the transfer with the OG 3DS, then go back to GS and return the XL, which put the money back on my card, and then trade in the 3DS and re-buy the XL.
Stupid.
When I picked mine up they let me hang around at Gamestop and do the transfer. Hopefully one day we'll just have a real account system and won't have to bother with this