I'm pretty new to Insteon and have so far bought 6 switchlinks and the iSY994i Pro for the start. Everything works great irl, over the web/admin console and the MobiLink Lite app. I have iPhones and iPads and have seen this question asked many times, but never really answered. I'm trying to decide between Mobilinc Pro or HD. Is the only difference between them the user interface on the iPad? +$30 extra for the big pictures of devices in HD? I can get excited seeing big real pictures of switchlinks and sensors, but hardly my wife. Can the HD version display the listed Pro view on larger screen size, or is it hardware picture list only? Any other benefits of the HD version?