Your demo site plays fine on my iPhone. I've tried everything as far as converting videos to MP4 with x264 codec. Used multiple programs, including handbreak and FFMPG along with others. The MP4 comes out fine, but wont work on iOS devices. FLV videos work fine on desktop, but I can't get any of the mp4 videos to work on my iPhone. It just shows a blank space where the video would be on the iphone. And I cant see the Image Preview on either Desktop or mobile device. Thanks for your time.