I have the Nikon 1 AW1 for review right now. It's the world's first rugged, waterproof interchangeable lens digital camera and I think it's pretty exciting. From previous experience with Nikon's mirrorless cameras, my expectations for the AW1 are pretty high - at least for the auto focus. A couple of weeks ago I took it to a local cyclocross race as it didn't let me down.
As you can see, the auto focus is excellent. And these are taken from sequences shot RAW at 15 FPS where they were pretty much all perfect. I need to shoot more action with the AW1 but my initial tests are very positive.