All regular game cards should work fine on it. Any regular SD card should work, up to a capacity of 32GB.
Of corse it will The DSI is an upgraded version of the Original DS it will work.
On a DSi, yes. However, not on other DS models so far...
No. None of the old Game Boy or Game Boy Color games work on any version of the DS.
yes as it is not made for the 3ds it will work on any ds i myself play it on the ds original
Yes, DS games are region free.
Yes, a Japanese version of Pokémon HeartGold will work on a DS from Australia. The Nintendo DS can play all games regardless of what country they originate from.
They are able to hold the maximum for standard SD cards, which is 2GB. SDHC cards will not work with official cards, but some clone cards have SDHC support.
It depends on what you're talking about. If it's the 3Ds version, then no. If it's the Ds version, then yes, it works!
All r4i cards work on 3DS. But you need to understand that the R4 cards does not work on the 3DS 3D games and only for DS games. For the first generation R4, it does not work on the cards, please refer to 'R4i cards' , 'Acekard 2i' , ' M3i zero'.
R4 cards can be real ds cards too, but some are better then others. I can recommend the iEdge card for DS, as it's simple and stable and will run anything you need it to. I got mine from dscardworld.com
yes i am pretty sure it does.
I think you mean SD cards. It stands for Secure Digital.