Some people on
http://electro-music.com/forum/post-222876.htmlhad done some nice upgrades like adding a filter, creating Eagle PCB-boards,
... and even a new algorithm is available (Karplus Strong Algorithm emulating plugged strings)
http://www.reprolabs.com/fs7.htmSince I got realtime audiostreaming on the NintendoDS working I've ported the Fraktalsynth Algorithms, including a resonant 12dB Multimode Filter (lowpass,bandpass,highpass), Delay Effect and all with an easy to use interface. * Soon it will be released. *
The NintendoDS is cheap, CPU power, lots of RAM, StorageCard, Touchscreen user interface etc..
so this little guy will be my platform for my next projects ...
... be prepared for some softwarebended noisemakers
PS:
learning C is a bit hard in the begining but it's worth the trouble