I worked on the mbed variables then started building a cable to attach the TT4 and an amplified speaker. Once I got everything hooked up and working I was really disappointed in the http performance. The web page hangs almost all the time. Serial data doesn't always make it either. Not sure what's wrong. I suspect the device is underpowered for the amount of software. I'm wondering if I strip it all down and use my own software if it will be better. In any event, I drew a diagram and will photograph the system for the contest entry. I have seriously been looking at an atmega128 with an attached wiznet. The development system is $100 at Saelig and the device is $35 which seem reasonable. Dinner was salad and BBQ sandwiches.