Graffitti in that subway?

Poster behind girl?

NY 5  on the billboard?

Do you have to be in HOME (http://en.wikipedia.org/wiki/PlayStation_Home) (http://community.eu.playstation.com/playstationeu/board?board.id=b_EN_PS3_Home) to unravel all this?

Gleis 20?
http://www.google.com/search?hl=en&q=gleis+20&btnG=Google+Search

VideoGamer.com
http://www.videogamer.com

MeriStation.com
http://www.meristation.com

41 21′59.31″N, 2 08′15.76″E
http://maps.google.com/maps?ll=41.343825,2.15332&z=16&t=h&hl=en

Viale Cassala?
http://www.google.com/search?hl=en&q=viale+cassala&btnG=Google+Search

http://tupalo.com/en/milan/natura-si-viale-cassala

http://www.naturasi.it/index.php

41.8913292, 12.515689 ?
http://www.google.com/search?hl=en&q=41.8913292%2C+12.515689&btnG=Google+Search

xijess.com
http://www.xijess.com

hidden developer URL
http://www.ndreams.co.uk/
‘Xi’, our first-party PS3 project launched on Monday March 23rd

Playstation discussions:
http://community.eu.playstation.com/playstationeu/search?board_id=bEN_PS3_Xi&submitted=true&q=xijess