Yeah, I love themes. I like to keep them current with whatever game I'm playing. Right now I have the GTA IV theme (because of the awesome icons) with the Pixeljunk Monsters background wallpaper (the one that has black trees and grey creatures). I like the GTA IV backgrounds, too (oh, I got those from www.psu.com or psu.net whatever it is) because it has multple backgrounds of the characters that are visible even when using the PS3 browser. Great stuff.
Which link is the VC themes on that Japanese site, though?