Two 3DS XL (3DS LL in Japan) limited edition bundles have been announced, each one having either Pokemon X or Y pre-installed. Each 3DS XL has a really nice design that features the two legendaries from the games. It includes a 4 GB SD card too, which is a pretty nifty bonus.
They also released some information about Pokemon cards that can be purchased in Japanese stores, which have the digital versions of the games. Simply buy the Pokemon card, enter the code on it in the Nintendo eShop and then download the game. Nintendo will have downloads codes for sale on the official Japanese site as well. No word on whether the Pokemon cards will be available in other countries. I doubt it, though.
You can check out the gallery below, which has screens of the bundles boxes, the Pokemon themed 3DS XL and the Pokemon cards.