hm... actually, 1024x552 is pretty much 1.85:1, one of the two common widescreen ratios for movies. Still, it's a mystery as to why they'd capture in anything other than 1280x720.
IGN and Gamespot have been shrinking down 720p shots for some time. Gamespot especially. I guess it fits the page format better or it saves considerable server space and bandwidth. Stroll through nearly any of GS's galleries for proof.
