The PS3 since FW 3.60 (or so) support 4K picture. You can see an application here:
PlayStation 3 - High-Resolution Image Enlargement Technology : DigInfo - YouTube
For application and game:
The application is call PlayView (there are an RCO i need to found back for the wiki irrc)
But now the relation between this PlayView and the featuring 4K on PS3...and how it can be implemented on "video game" on next generation (and not picture) it s something i ll like to know.