Aside from the Digital Comics launch, PSP owners can also jump into an available demo for Metal Gear Solid: Peacewalker, while PS3 owners can go into the running to check out the official (and long awaited) Gran Turismo 5 demo via the launch of the GT Academy 2010 online Time Trial, also available from the PlayStation Network today.

Anyone from a participating country who is aged over 18, holds a full driving licence and is eligible under the terms and conditions of the competition can enter the Time Trial stage of GT Academy 2010. All you need is access to a PlayStation®3 (PS3™) connected to the internet.

Download the Gran Turismo time trial from PlayStation®Store via PlayStation®Network and you’re ready to go! Lap times will be recorded on the iconic Indianapolis Motor Speedway road course driving the Gran Turismo versions of both a standard, road version of Nissan’s stunning 370Z as well as a tuned version of the same car. Combined lap times will give each player a place on their country leaderboard and participants are invited to post as many times as they like.

Apparently an Aussie is actually top of the worldwide leaderboard even as we speak.