Unfortunately Not, you will need the Nintendo 3DS.
Yes, the DSi can connect with the Wii just like an ordinary DS can with game demo downloads, new game features, and Miis in some games.
The Nintendo DS lite does not support and cannot download Miis.
In America: A Nintendo DSi is $140; a DSi XL is $160. In Japan: A Nintendo DSi is ¥15,000; a DSi LL is ¥18,000. In the UK: A Nintendo DSi is £150. In Australia: A Nintendo DSi is $300.
I don't think you can...
Unfortunately Not, you will need the Nintendo 3DS.
Systems not transfer miis: DS Lite,DsiXL, and the origanal DS Systems transfer miis:3Ds and the Dsi (The Dsi may transfer miis...)
Yes, the DSi can connect with the Wii just like an ordinary DS can with game demo downloads, new game features, and Miis in some games.
no
The Nintendo DSi has a built-in web browser.
No. Miis are only for wii games like wii sports and wii play.
no
I do not know but i do know that you can put an SD card to put songs on the DSi.
Unfortunately no. You can only put music on a Nintendo DSi and N3DS with a SanDisk.
Yes, if you have a SDcard.
yes
YES