The DS-10 blog has an update on using the DS-10 cart on the new Nintendo DSi:
for DS-10 users in EURO
Nintendo have announced DSi will be released next spring to summer outside Japan.
If you play DS-10 on DSi,You will be surprised how smooth the operation is and how powerful the sound is.
I have no idea what the DSi will do for music and homebrew apps on the DS platform, but I’m hoping it is a good thing.