UPDATED – Brando just dropped us a note. They have the Aputure Gigtube and they’re going for US$177.
The bizarrely namely Aputure Gigtube is a plug-in, external LCD display and camera controller for digital SLR cameras. It works with all the major digital SLRs (except Sony) and provides a live feed via the camera’s LiveView function. If LiveView isn’t available on the camera, the Gigtube will still display the photo that has just been taken so you can review it. The Gigtube’s screen is a 2.5″, 230 kpixel 16 million colour unit and it connects to the camera via it’s video out port and USB control port.
It comes with a 2m extension cable or you can attach it to the camera via the flash hot-shoe. The display rotates 270° and it has a built-in rechargeable battery that will last about 3 hours on a full charge. There are different models for each camera manufacturer but you can pick them up from Amazon for US$194.95
Compatible with any camera with a video output, the screen can automatically display an image immediately after shooting it, or can stream the video feed from live view. Moreover, the LCD screen is rotatable for different angle view and this gadget offers the remote shutter release function.