This is very intriguing.
There is something I'm wondering about. Although this design looks very, very nifty, I know that I personally didn't have a lot of success with keyboards with exotic configurations that aren't the traditional rectangle o' typing. So although this look promising as heck, I'd like to be able to try the beast before buying... As I doubt I'm the only guy sitting on the fence for that reason, it might be a good idea to see if something can be done to hook us in. :-) ("rent-a-prototype"? "satisfaction guarantee or your money back" policy? I don't know exactly what would be making sense...)