Main protagonist: Niko Bellic
Platforms: Xbox 360, PS3 and Windows (PC - REQUIREMENTS).
Release date:
Console release: April 29, 2008 (worldwide).
PC version release: December 2, 2008 (North America), December 3, 2008 (EU).
Official Website: http://www.rockstargames.com/IV/
Screenshot gallery
Characters
Locations
Official trailers on the Official website: http://www.rockstargames.com/IV/#?page=videos (Download links are available for various formats and resolution)
Youtube version: Official Boxart unveiling, Trailer-1, Trailer-2, Trailer-3, Trailer-4, Official GTA IV TV Commercial, GameStop TV Commercial, Xbox 360 TV Commercial, PC exclusive trailer (AKA, "Fall 2008 TV Commercial").
Teaser trailers: (till the 26th April'08 official website update)
of Characters
Niko Bellic: Watch on Official site | Youtube
Roman Bellic: Watch on Official site | Youtube
Phil Bell: Watch on Official site | Youtube
Manny Escuela: Watch on official site | Youtube
Vlad Glebov: Watch on Official site | Youtube
Patrick McReary: Watch on official site | Youtube
Playboy X: Watch on official site | Youtube
of Goods, Service & Places
Karin Dilettante: Watch on official site | Youtube
Whiz Mobile: Watch on Official website | Youtube
Steinway Beer Garden: Watch on official site | Youtube
LCPD Recruitment: Watch on official site | Youtube
Liberty City Gun Club: Watch on official site | Youtube
[You can easily download these videos in .FLV format (from official site (higher quality) or youtube), with help of Firefox and its plug-ins like DownloadHelper or DownThemAll!]
Online previews:
Preview 1: Welcome to GTA IV (May 25, 2007)
Preview 2: Gameplay, Missions & More (July 25, 2007)
Preview 3: Big characters, big deals (January 23, 2008)
Preview-4 : Hands-On Preview
Reviews:
1st ever Review
IGN Review