According to internet rumors, Rockstar are having problems in fitting GTA IV onto one disc. The game is also scheduled to feature in-game internet which could play a sound part in many roles of the game.

It's also been alleged that an important feature will be an in-game internet. According to speculation, central character, Niko will be able to upload his resume to apply for a job, in order to get an interview with a man he has to kill. Furthermore, it's possible that Niko will be able to use his mobile phone when ordering and buying weapons, which could remove the need to visit the ammo shops.

Further rumors suggest that the game will feature more true to life ways of side-stepping the attentions of the law. It has been suggested that if a player is being pursued and drives to an isolated area, changes cars while no one is looking and drives off in the new ride the cops will be none the wiser.

Yet more rumors circling certain E3 parties suggested that Rockstar is having trouble squeezing the giant game onto one Xbox 360 disk.