Measuring 3.25” by 2.75” by 1.4” at its largest points, iUSBportCamera combines an 802.11b/g/n Wi-Fi access point with 4GB of onboard flash memory and a USB port, a mix of parts that enhance the DSLR shooting and sharing experience in a variety of ways. Critically, they enable two-way wireless communications between a Canon or Nikon DSLR and, say, an iPad, such that you can use the iPad’s screen as a live video preview…