In the Game Informer magazine it mentioned that there will be no planes in GTA 4 as it's only one city. After the answering session Reiner did with fans questions he did comfim that Helicopter's would definetly be in the game.---Boats have been confirmed, so sea travel is possible.---Once again there will be girlfriends in the game whether you like it or not.---Climbing ladder's has not been confirmed in GTA 4 but during the 15 minute demo of the game that Reiner played he said that Niko did ascend a telephone to get a bird's eye view of Liberty City. He also said it was quite impressive seeing his body weight transfer from side to side as he climbed the pole, so this could be a good indication that Niko will have the ablity to climb ladders.---When stealing Stealing cars on the street, there will now be several different animations (besides smashing the window)---Rockstar have claimed to be focusing a lot of attention to the targetting system in GTA IV. Improving it dramaticly from the, lets face it,inaccurate system used throughout the series - GTA3 onwards. When Targetting onto a object, the camera is said to zoom in behind Bellic's shoulder - Resi Evil 4---As GTA IV is set in the present day or near future, Niko now has the gift of the good old mobile phone. This will be used to make calls with his various contacts to recieve missions. Other possible uses for the phone have been rumoured but nothing else has been set in stone as of yet.---In an article in the official Xbox magazine in the U.S, it confirmed that car trunks would be a new game feature. When they approached the parked car in Broker from behind, the Admiral that so many publications got to see getting broken into, an information prompt came up on the top left side of the screen, indicating to press the left b*mper or 'LB' b*tton of the Xbox 360 controller in order to open the trunk. This b*tton is the equivalent of the PlayStation controller's 'L1' b*tton. Whether this feature will only be used in missions or at anytime during gameplay is yet to be known.