There are a few 3D games for the DSi. Legend of Kay is one, though I wouldn't actually recommend it.
Sorry, but no. We'll all have to upgrade.
The 3DS can play the DSI and regular ds games and Yes Of course the 3DS can Play the 3d games but other nintendos can not play the 3D games.
A faster processor and more RAM was added to the DSi. This will allow for better looking and smoother gameplay.
No. The Nintendo DSi and the Nintendo 3DS store games on the SD card, not a sim card.
A simple answer. No. Not even through hacking. Nintendo 3DS games may only be played on the actual system because they can be viewed in 3D.
Yes there is a different slot for them.
No
Yes, and no. There are games ONLY for 3ds, but they just let you play the game in 3d. Don't worry, it will still play ds/dsi games.
a 3ds is a dsi with 3D effect. a dsi XL is a big dsi. you can choose: 3D effect or being big. i would choose the 3D effect.
You can play 3DS, DSi or DS games. (Note: DS and DSi games do not display 3D visuals.
No
No, the DSi can only take pictures and record sound. The 3DS, however, is planned to be able to play 3D movies.
No, dsi games work in a 3ds, wont appear 3d though, but the dsi does not have the ability to play 3ds games.