If you want to use Pictochat you can install the DSi version and launch it from the home menu.
It should be a .srl or .nds, which you can convert to an installable .cia (but you may be able to also find an already converted .cia)
If you want to use Pictochat you can install the DSi version and launch it from the home menu.
It should be a .srl or .nds, which you can convert to an installable .cia (but you may be able to also find an already converted .cia)