It is a Nintendo pattent for a memory cartridge.
http://patft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=12&f=G&l=50&d=PTXT&p=1&p=1&S1=(nintendo+AND+%40PD%3E%3D20070701%3C%3D20070902)&OS=nintendo+and+ISD/07/1/2007-%3E09/02/2007&RS=(nintendo+AND+ISD/20070701-%3E20070902)
As I see it accept an sd card.Download service from the nintendo for the NDS?
http://patft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=12&f=G&l=50&d=PTXT&p=1&p=1&S1=(nintendo+AND+%40PD%3E%3D20070701%3C%3D20070902)&OS=nintendo+and+ISD/07/1/2007-%3E09/02/2007&RS=(nintendo+AND+ISD/20070701-%3E20070902)
As I see it accept an sd card.Download service from the nintendo for the NDS?