no
No it does not. Unless they are developing a new one with the capabilities, the current 3ds and new 3ds do not have bluetooth. ... If you want Bluetooth I would suggest a battery powered adapter that adapts the headphone jack to Bluetooth.
The Nintendo 3DS has no bluetooth capabilities or hardware, no possible 'download' can spontaneously make some appear.
The Nintendo 3DS does have wireless communication capabilities, but they are not Bluetooth.
Yes no metter what 3DS is a 3DS
you cant use the 3DS charger for the DS/DS Lite, but you can use the 3DS charger for the DSi and the same with the DSi charger, you can use it for the 3DS.
Yes, you can use the bluetooth until you have turned on bluetooth and paired the bluetooth devices.
You use a USB Bluetooth dongle.
You'd have to use system transfer to migrate your ID from the 3DS to the 3DS XL before you can access your downloaded games on it.
There is Velcro in the package with the BlueTooth adapter that you can use for this.
No. A DSI cant use a 3DS charger.
hacking with the use of bluetooth (like your cellphone has)
No, bluetooth is a serial interface.