It's been awhile since I got bored of my wallpaper, whipped up a new one. This is based on a bbblurgray found somewhere on the 'net (sorry can't remember) combined with a bit of 'dirty viewfinder' action from Flickr (slightly modified to 320x240 for BB work).
The dirty look with a dissolve is intentional, slap it on your grey BB 8320 with the Zen theme and it looks pretty nice, a touch of 'urban decay' feel which is what I was going for...