Flimstrip mode was so awesome and now android has it too, I guess even iPhone too, and as soon as they added that feature, we ditched it, only WP had it at first. I miss it so much.
It's when you pinch out when you're in your camera roll, or when you're were looking at pictures on Bing (). You were able to quickly skim through pictures, etc. It looks like a strip of film.
I loved that feature and it was convenient and handy. I don't understand why MS took it away either.
I remember that feature. It was just a case of Microsoft updating the UI. I do remember the oddity of showing a corner of the previous picture on-screen while you were preparing to take a new picture.