DSduino
DSduino is an NDS+Arduino+BASIC extension via slot 1 SPI.
...DSduino allows you to use the BASIC programming language on NDS for writing short programs, such programs will be interpreted and executed immediately without compiling by a PC. Additionally, those programs can be saved to NDS's flash card (e.g., R4 or SuperCard) or loaded from the card. Due to the powerful functionalities of NDS (WIFI, 2 ARM CPUs, touch screen, 2 TFT screens, Microphone), this solution can be used to extend a wide class of applications.