i just wanted to let people know that we are having a sale on our stomp shield. its a kit for doing dsp with an arduino, but is equally useful for whatever platform you may have. it fits inside of hammond case, and has a 3 pole anti-aliasing filter for both input and output. it also has gain, mix, and feedback. http://www.openmusiclabs.com/store1/stomp-shield-store/
we are also having a sale on our audio snifer kits: http://www.openmusiclabs.com/store1/audio-sniffer-store/
Pretty cool. And nice of you to make a version for left-handed people.