Robin Wong has released a video review on the E-M5, mainly focusing on the street photography. As expected, they like many aspects of the camera including the size and high-ISO performance. They think ISO6400 is very usable. One of the most notable statement they made was that the IBIS found in the E-M5 is THE best image stabilizer they have experienced from any camera so far! Those 5-axis must be performing some magic inside that hump!
Check out the video for the complete review.