If anyone else is thinking about getting a SmartieParts board I'd do it now. It looks like he's received another 200 boards, but they usually sell out pretty quickly.
Edit: Just to keep this on topic. If you set a channel to get it's value from it's self and set it's switch to on you get a sort of position memory, so you can replace the value of that channel with whatever and the channel will remember the value.
I'm going to make a short YouTube vid showing this on Wednesday. I use it to remember my throttle position, so I can get the plane flying level, store the throttle position, then after I've landed I can check the value and use it as the middle value in my throttle curve.