I wonder what that pdf is? I mean, it looks like a screencap from some site. Do you think that is handtec's distributer?
edit to add: All the places that have review device (gsmarena, for example) don't have a flash, but they also state that they had less RAM than the actual phone (256 vs 512), so maybe Samsung haven't actually finalized the details yet? I mean, they are being very secretive.
Personally, I don't think (given the details we know so far) that the phone has a flash, and so far ONLY handtec have stated that it does. I wish Samsung would release the detailed specifications!