I think the difficulty would be more in emulating the sound hardware of the DS properly, which is even a problem for some emulators on my 2.13ghz Core Duo.

Someone showed me this site recently and the software looks cool. Don't know how portable it would be. http://64studio.com/

I actually just ordered an N800 to look into its audio capabilities.

Anyone try http://lab.andre-michelle.com/ and see how those Flash audio toys run on the N8x0?

BTW, I have a cool audio thing in development that hopefully be out on another platform later this year. May port part of it to the N8x0 if things go well.