This might be of interest to you guys. iPod 4, shallow depth of field adapter and a 35m lens!
http://www.creativevideo.co.uk/index.php?t=video%2FCineDesign+iShoot35+35mm+DoF+adaptor+interface+for+cinema+quality+HD+acquisition+on+Apple+iPhone+4%2F%2Fautoplay
It's a nuts bit of kit! Possiblt this item will on show at NAB, Wish I could go!