R4iTT 3DS was released into Market on Feb 28th, 2011, only two days after the Launch Date Japan. R4iTT 3DS is Real Time slot-1 flashcard for Nintendo 3DS, DSi XL, DSi, DS. R4iTT 3DS supports 3DS kernel update but currently R4iTT kernel V2.17 supports only 2D games. More 3DS games will be fixed in following R4itt 3DS firmware update. More detail at www.utoptoy.com
Source:
http://nintendo--3ds.info/r4itt-3ds-jailbreak-card-for-nintendo-3ds-live-show/