You don't know C/C++, but you want to write some programs for your DS? Well, learn Lua and write scripts to run using DSLua! Here is version 0.1 (preview build) for you to play with. Version 0.1 supports some basic text functions, and functions to read dpads/stylus input. Currently it will only work with devices support by Chishm's FAT driver (devices like GBA Movie Player and M3 CF) though. Enjoy!