
3DS Feature :
- Backward compatible with DS and DSi games (including downloadables).
- Customizable 3D depth and 2D mode.
- SD Memory card slot, with a 2Gb card included.
- Familiar controls to DS users.
- Added analog circle pad.
- Accelerometer and Gyroscope allow for motion sensing.
- 3DS is packaged with a battery charging cradle.
- User interface has a Home button which allows for suspending gameplay and reentering at any time.
- Street Pass enhanced local wireless features.
- 3 cameras - one is forward facing for self shots. The other two allow for 3D photography.
1.It's said that old DS-only flash carts (e.g. Acekard 2.1, CycloDS Evolution, R4 DS...) that were not DSi compatible, aren't 3DS compatible either.
2. the 3DS Will only use one universal friend code. that's to say, Once you add someone as a friend in the 3DS, you don't need to add him again in a game you both have.What's more, it will make WIFI games easier to set-up.
3.the Nintendo 3DS will be region coded, that's to say the right of playing games from different regions on the system was lost.
Source :
Nitendo offical website
NDS Card supports