Well I downloaded "DS Game Maker" which is a GUI-Toolkit for developing DS Roms using a 5th Generation language in addition to permitting the tool to use the Nitro (or TWL) SDKs to further interact with the hardware. Interestingly enough, the GUI-Toolkit uses DevkitPro (which also uses libnds)... As a HOMEBREW tool, it's amazing. Not certain if all games can be designed with "DS Game Maker" but the tool seems pretty cool in terms of coding and graphics (management) in addition to sound effect (and music - MP3s). I'm not sure how the *rooms* concept will work. The tool is also using OBJECTS (that can be defined)... It's rather a *brilliant* tool... The only drawback is that the newest version requires Windows 7 or 8 in order to use the latest version of the .NET Framework. And that won't work for me... Has anyone *explored* further "DS Game Maker"? Anyone used the tool set? Any comments???