Now many store accept pre order for gateway 3ds and if you need,here is a store for you : http://www.modchipfactory.com/gateway-3ds-the-first-3ds-flashcart-for-3ds-games-p-19.html .
At present, resellers haven't sold this card, recommend you buy r4i gold 3ds from http://www.modchipwarehouse.com/r4i-gold-3ds-flashcart-for-3ds-xl-3ds-dsi-ds-lite-p-1.html to play games, this card can work on the latest system, the red gateway 3ds only work on v4.5.
yeah, gateway 3ds is currently the best 3ds flashcart for you to play 3ds backups out there, and so far has support for all the latest games (except Pokemon X/Y and Animal Crossing) http://www.r4flashcart.com/13-gateway-3ds-flashcart-play-3ds-games-on-3ds-xl-3ds.html this is the best site i've heard to sell gateway and r4 cards. Just take note that it requires system version lower than v4.5
Yes, some players have received gateway 3ds card, and this is the reviews about it. http://what-is.3ds-r4i.com/reviews-for-gateway-3ds-flashcards-after-receiving-it-104/
