I did a thing that made me come to sandover! And in 3 of the huts there was KG boxes! I dont think Naughty Dog placed them there by accident! Gotta be an easter egg or whatever :D

This is what i did:

1:Go to scene player act 1 and play intro.
2:When it shows the Naughty Dog icon open the disc and wait till the blue thing appears telling you to put back the disc.
3:Put back the disc and press X.
4:You should now appear in sandover village on the ramp thing with a lot of birds flying towards you.
5:Press "restart mission" and you will be able to move around! Only the village is mapped tho. if you go outside you will fall into the abyss. Same if you go too far out in the water.

This shouldnt be too risky for game/console if you dont do it often.

If you dont belive me watch this!:
http://www.y outube.com/watch?v=K boBftlvnlg&NR=1

t heres tons of proofs on youtube!