<p>As I just bought a V2 with 10-3 and 30-110, I'll answer my own question.<br>
I took my Nikon V2 to a bicycle race on last evening to test out the high-speed AF and FPS shooting. I am blown away. At 5 fps (mechanical shutter) and 15 fps (e-shutter), it finds the time to re-focus in between frames, only rarely missing any and those were probably my fault. The long zoom (80-290 mm equiv) is not fast, was set at f5.6 a lot, and it was dusk, but it still focused all the time. And it weighs nothing. <br>
There's too much menu fiddling, I'd prefer buttons, but it's not that bad either. I looked at normal jpgs shot at 800 on the computer screen and they're fine. Maybe not National Geographic standards, but I don't work for them. It's not weather-proofed either, so not good enough for some pro requirements, but I can live with plastic covers for my purposes.<br>
While you're firing away, the screen freezes up with each shot, but it's no worse than the mirror blackout on a D-SLR, it's no harder to track the movement, just different.<br>
The online reviews say that it eats batteries, only 300 shots to a charge. If that's the worst problem, I'm happy.</p>