Update: The image above and the original post has been removed from the source, Mobile01, make of that what you will.
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It could be internally, but as for the exterior, not so much. The above image is actually just a dummy shell meant to keep use from seeing the final design, much like Apple what did with the iPhone 4, at least until it was lost in a bar.
While the exterior maybe fake, what’s on-screen is much more telling. It looks like Samsung has decide to come up with it’s own layout for the on-screen buttons, they’ve decide to switch the layout position of the back and multi-tasking buttons, for whatever reason, we don’t know. One last thing, we know the exterior is a dummy, but we’re not positive if the dedicated home button will remain, knowing Samsung, they may decide to keep it for the globally release, just don’t count on it remaining as part of the design in the U.S.