Some new images and specs of the Samsung Galaxy S IV has been posted on the Expansys web site. They say that it's not official, and will probably change when the Samsung Galaxy S4 is officially unveiled March 14 on Samsung's Unpacked event.
And the funny thing is that, apparently has evleaks stolen these images and posted on Twitter with their logo on them. And after that these images has spread to a lot of gadgets websites.
It's funny to see how easily rumors and "leaks" spreads :)