I need to display some pictures on my ipad and have an on-screen pointer (like a laser pointer), as Keynote does. BUT I need it to show JUST my picture and the pointer, without any other onscreen interface stuff like pallets or menubars. This presentation has to be at full ipad resolution, not at computer screen resolution. Is there a way to make ipad's Keynote app not popup the color pallet? Or is there a different app than can do this?