yes i do it all the time.
If Australian games are the region PAL then yes.
Yes, DS games are region free.
No, Australia region for games is PAL.
No. The DSi is region locked.
No, the Wii is region locked.
Yes, DS games are region free.
Yes, DS games are not region locked.
No, Wii games are region locked.
Yes, DS games and consoles are not region locked.
Yes. DS games are not region locked, though there might not be full compatibility with any online functions of the game.
Yes, they are not region locked.
NO most games are made for a specific region code