Yesterday Rockstar Australia invited AusGamers down to watch a controlled demo of Grand Theft Auto 4 in action. Sporting the latest build from Rockstar North, we were shown many of the game's overall improvements as well as a touch of the mission types, open-world game design and sheer style of what GTA IV is going to be all about.

Alongside some new screens released today (which can be viewed by clicking here), you can jump into our in-depth hands-off impressions of what is already poised to be the biggest title of 2008.

Update: Rockstar have revealed GTA IV's release date in Australia finally. Get down to your local game store and pre-order your copy for the 29th of April 2008.