Create and display a slideshow at events..live! Take photos from a camera and have those photos drop into Slidecaster to present a live slideshow. While this software doesn't make your camera wireless (that's different equipment), it does create the slideshow for you. Take a new photo and it appears first before rotating into the random loop of photos.
Besides being extremely easy to use, very stable and allows for the newest photo to appear instantly, Slidecaster offers the ability to add the use of a remote app from your iphone or ipad.