GTA IV PS3 reportly uses lower resolution in UK

Gamers in the UK have stated thatGTA IV runs at a resolution of 630p (1120 x 630) on the PS3 as opposed to the standard 720p High-Def resolution HDTV’s are accustomed to.  It has also been reportedthat the Xbox 360 version of GTA IV runs at the full 720p resolution.  What does all this mean?  Nothing.  Most, and by most I mean 99% of all people playing the game will not notice.  Unless of course you have both games for each console and play them side by side.  In either case, the great gameplay and storyline are still there.  Now if this happened in the UK does that mean it may have trickled over to the US too?