Looks pretty good.
They ask "Why didn’t a manually powered washer or dryer already exist? "
I know it is not exactly the same thing, but I have been using one for the last week or so.
We are still maintaining two houses at the moment and I refuse to buy a new washing machine which we won't need later, so I have been using one of these:
http://www.youtube.com/watch?v=Z6oE_6TwBuo... clearly it is far smaller, and lacks a spin or dry facility - but it works surprisingly well.
If they started selling the GiraDora over here, I would buy one in a heartbeat.
I would see it as combining a keep fit regime with doing the washing. No need for a stepper or treadmill, just get more clothes dirty