Pardon the absence- life happens!!
If you are really short of time, pls just jump to the section titled 'Questions'
Thank you to 'eok' for his advice re: the arduino.
I've looked at the code kindly provided by 'dancodru' in his demo app 'ZeoScope - great stuff, but why, oh why, did you code it in Microsoft C# ??!!
There's C++, Java,... so why did you decide to lock it into a 'MicroSerf'- only OS? Still, I'm grateful for what you gave us - Thanks.