ybizzle: There is nothing more I love than a camera with the latest tech but with the retro looks of yesterday (hence why I bought both the Fuji X10 and X100 cameras). That said, I cannot justify purchasing this camera over say the X100 or the X-Pro 1 mainly due to sensor size and I personally prefer Fuji's take on the retro looks. However, the image quality from the camera is indeed quite good so for those wanting a m4/3 cam, you can't go wrong with this beast.
Yes, Panasonic is the only other company that makes micro four thirds cameras as of now. Though Panasonic cameras would work with Olympus lenses perfectly fine, you won't get image stabilization with these lenses as Panasonic cameras do not have imager based IS and, perhaps, slower auto focus than what you get with Olympus OM-D / EP3.
rpm40: I hope it has an option for HDR- it could simultaniously take shots with each lens at different exposures, and then combine them into one HDR image.
That would allow for awesome results even with action shots. It could be enough to get me to buy one!
I think it's possible. If they crop left side on the left lens image and crop right side on the right lens image, you would effectively have two images that are aligned.