All right, well I've scoured the forums a bit, and while I now realize the difficulty of my request, I came across an interesting link:
http://www.bottledlight.com/ds/index.ph ... MBProtocol
It appears that some work has been done in terms of analyzing the WMB protocol, and so perhaps with those "major adjustments" to DSWifi being somewhat possible (albeit risky), I think that it might be possible with some major fiddling around. I'm tempted to take this on as a pet project, to see where I can go with it. My first step, thought, is going to have to be establishing Ad-Hoc communication between two DS devices. Like you said, it's not an official part of libnds/dswifi, but thanks to the magical power of GBATek and the ability to make a custom ARM7 binary, I'm sure I could come up with something that works, given enough time...
