Infered? HA! Haven't used that since Gameboy color, and that was only pokemon gold/silver/crystal exlcusive for mystery gifts, still was unnecessary, it only supported those games as far as i know. Least is not that GBA wireless link accessory that came with pokemon fire red/leaf green that worked with... ONLY POKEMON GAMES. Only pokemon games even push these accessories as many other games that would be able to support it goes unused.So much potential, so many bad choices on Nintendo's part. Use the damn IR sensor to establish a connection between 3DS's that transmits SSID data for local ad-hoc multiplayer/download play options and then disable IR. Literally, easy ad-hoc multiplayer without an access point.
Wait, that means putting a WiFi card in that doesn't cap out at 1Mb/s.