Fast AF: Is it the body or the lens? I've been reading every report I can on the latest M4/3 equipment to try to determine whether Olympus has greatly improved the AF performance over the E-PL1 and E-PL2 cameras to the new 3 series, and I must say, I'm confused. It seems that every report of "lightning fast focus" leads back to either the 14-42 MSC lens or the 12/2 or the 25/1.4 or the 45/1.8. I'm beginning to think that (beyond the long-awaited focus assist light) that the differnces in the bodies are greatly overshaddowed by the differences in lenses. Anyone have any experiences they'd like to share?