I am using a full Logos 6 on my Surface Book, but it does not handle the touch screen very well. I suppose that the main features of interest for Surface users will be an enhanced touch screen interface? For phone users and others with devices with smaller memories, the primary benefit could be the ability to control the amount of space consumed by downloaded resources. I bid on this under the assumption that the aforementioned problems will be addressed AND that I will be able to run it side by side with my full Logos version for those times when I want to run my Book like a tablet.