Most people dont know that Cross Game Invites are currently available on the Playstation 3. In the video below i show you that it is in fact available, but still has some bugs that need to be worked out.
Yesterday i was approached from an old friend at the DLB-Network, Snake-00. He noticed that with Call of Duty: Modern Warfare 2, you can accept online Party Invitations within any other game.
Once you accept an invite, it tells you that you have to quit the current game your in.
Once you agree to that, it then tells you to eject the current game and replace it with Modern Warfare 2.
Once you insert the disc, it will then take you directly to the Online Party, saving you the hassle of dealing with the menu system.
This doesnt always work, but when it does it works well.
Also, you have the option to accept invites directly from the XMB, without being in the game. The only problem is that this never works. It looks like its going to work, but then your faced with a never ending black loading screen.
Watch the video below, and see what Im talking about.