According to a forum member from the official PlayStation boards, he was able to get in touch with an insider who shared their information about development of PLAYSTATION 3 games. Those are the things needed for a game to be included into the PlayStation Home Network.
"A game must be able to integrate into Home, a game must support "Accomplishments". Right there, two important things, the PS3 system for achievements is called "Accomplishments", and Home is coming out VERY VERY VERY Soon."Accomplishments? Very very very soon? Sounds an awful like achievements for the PLAYSTATION 3 and GDC 2008 to me. We will find out this week.
[PlayStation Home to come out soon?]