Originally Posted by Parm
mediaboy, a Games for Windows Live-branded title provides the following common features:
Support for an Xbox Live gamertag
Support for Xbox Live friends list
Support for Xbox Live achievements
In some games, there will also be cross-platform multiplayer. That hasn't been confirmed for GTA IV, but if it does happen, you would be able go and own your friends who play GTA online with a 360.
never knew that...learn new things everyday
...thanks btw