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A prominent gear-related site was recently hacked, and a link to a "hands-on" video by Olympus technical specialist Rick Sasserath was leaked. The video demonstrated the not yet released Olympus OMD E-M1. It has since been removed, but stills from the video are easily found.  If you do a search, it's still possible to even find the video available.
The Gadgeteer , Olympus OMD E-M1 photos and hands-on video leaked, Olympus OMD E-M1 photos and hands-on video leaked