The_God_of_War on 29 April 2008
The PS3 version is NOT 620p!
http://www.ripten.com/2008/04/29/confirmed-gta-iv-ps3-is-not-630pits-640p/
It's 640p.
So it's not in "True HD" but it's widely agreed to look slightly better than the 360 version.
In a way, both consoles are "owned". The PS3 version cannot manage true HD, but the 360 version still cannot beat the PS3 version.
