No, you cannot text between the Nintendo DS and DSi. However, you can use PictoChat to communicate with each other.
as far as I understand it is the same thing. ds lite is the short way of saying Nintendo ds lite.
Yes with pitchochat if you are near
There is no such thing as "DSi Lite" but let me tell you this: at the moment of writing, ALL DS games fit in ALL DS's (DS, DS Lite, DSi, DSi XL)
The DS lite and DSi are completely different pieces of hardware. You would have to buy a DSi, you can not turn a DS lite into a DSi
You can. The only difference between the DSi XL and the DS lite are that the DSi XL has the camera and it has a larger screen.
Yes you can. You can also connect DSi to DS and DS Lite to DSi.
They are for ALL DS SYSTEMS, DS, DS lite, DSi, and DSi XL.
No. The DS range goes 'DS', 'DS lite', 'DSi', 'DSi XL', and then there 3DS.
Yes you can. You can also connect DS lite to DS and DS Lite to DSi.
Yes you can trade a DSi for a DS Lite at Gamestop.
No, the DSi uses a different charge to the DS lite.
No. The DSi and DSi XL does.