360 Voice is reporting that 30% of their members played GTA IV in the first 24 hours of release.Other interesting facts:
- The second biggest day for a game ever, beaten only by Halo 3 launch which had about 5600 more players.
- Call of Duty lost about 40% of it's gamers for the day
- Halo 3 which saw a similar 37% drop in players
