The image where he's sitting on the stairs, that looks a lot like where you get your first mission in GTA3 don't you think?
If this is true, I'm pretty amazed by the graphics on such a small device.
EDIT: after just reading page I understand why it looked so much like the first mission spot

. They seem to be farely sure this is real, and there's no indication of Rockstar telling these are fakes... I guess the 16th we will find out

.