There has been a definite backlash against nostalgic filters bubbling throughout the blogs. This essay explores more deeply than any of the articles I've read (would not be surprised if it spawned all those blog posts). I'm not so down on them, -nostalgia feels nice. But even from the first I didn't like (and therefore use) the vast majority of the filters, and every pic I took I generally saved an unprocessed copy if possible. I much prefer post-shot filtering apps like Camera+ to the ones that preprocess every pic you take. More control. For the past year I've been thinking that there is a great opportunity for a photo app that focused strictly on black and white photography. One with filters that focused on a range of processing involving things like contrast, brightness, white balance, etc. B&W always looks good, and if you could do a live or post filter that quickly let people quickly edit/process them, you'd have a really useful app that produced consistently quality results.