My wife and I are taking my 6 year old to Disney World soon and I am wondering if I can use my iphone 4s as my primary video camera. I know that the 1080P takes up a bunch of space, so I realize that I may run out of space pretty quick, I am therefore in a quandary! So lets say that my iphone is full of video and I want to offload the video so I can save it and take more video. AND I dont have a PC. Is there any way to do this? Is there any way to set the video resolution to 720P to increase the run time? Thanks in advance!