How Does PetitModem Work? if my 3DS is connected to the same WiFi as my 3DS, can I send Data to my 3DS using PetitModem? or do you have to have the cord that connects your 3DS To Your PC? or is their a different way of sending?

It transmits data using the 3DS MIC, so you'll need to get your 3DS really close to your PC speaker and microphone and pray that nothing goes wrong for it to work. There's a Petit Modem app for PC, too. You'll need to use them together and select the same options for it to work. I really wish it was as easy as you said, but SmileBASIC can't do that…

Yeah, unfortunately not even the camera ended up being supported. Maybe that's a good thing though, allowing people to do almost whatever they want with their pictures, or connecting programs to wifi, would only open doors to hackers to get you viruses and all that nasty stuff ;)