Lightroom mobile wastes tons of space without wifi. I was recently on a trip testing an iPad Pro as a mobile workfloe device when I discovered that if you don't have a solid wifi connection, all photos imported into Lightroom mobile take up their full amount of space there, on top of the camera roll. So 8gb of photos essentially take up 16gb of space on the iPad until you reach wifi. This is awful with the expensive storage space on an iPad. Very limiting. This combined with the lack of LAN connection for sync makes it almost useless. If adobe can cut the necessity of the internet with the mobile app it would open up a whole new world of efficiency for mobile users.