That's great! I hope they release it soon. Would love to have this machine to toy around with between the World Cup games this summer.
I found one of my old controllers yesterday, speaking of NES. The B button wasn't working so I took it apart to clean it. It was full of 20 year old grime:


This is what it looked like after cleaning:


I reattached one of the wires to the board too. I was thinking about installing a longer cable (the original one is only about 6 ft which is pretty short by modern livingroom standards), but it sounds like too much work. I'll probably ebay a couple of these instead: